Patient information: uses, side effects, how to take - Humatrope
Instructions for Use
HUMATROPE® (HU-ma-trope)
(somatropin)
For injection, for subcutaneous use
Single-Patient-Use Cartridge Kit
HUMATROPE cartridges are only to be used with the appropriate corresponding HumatroPen® injection devices supplied separately.
Read this Instructions for Use before you start using HUMATROPE Cartridge Kit and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your or your child's medical condition or treatment.
Your healthcare provider should show you how to prepare, mix, measure, and inject HUMATROPE the right way before you use it for the first time. Ask your healthcare provider if you have any questions.
How should I store HUMATROPE?
- Store HUMATROPE in the refrigerator between 36°F to 46°F (2°C to 8°C) before and after mixing.
- Do not freeze.
- Store HUMATROPE in the original carton to protect from light.
- HUMATROPE that has been mixed and is in liquid form must be used within 28 days. Throw away any mixed HUMATROPE left over after 28 days.
- Before giving an injection, check the expiration date on the Cartridge. Do not use the Cartridge if it has expired (See Figure A).
Important:
- HUMATROPE Cartridges should not be used if you are allergic to metacresol or glycerin.
- The HUMATROPE Cartridge is not recommended for use by blind or visually impaired individuals without the help of a sighted individual trained on how to use it.
- If your healthcare provider changes the prescribed cartridge strength you will need to get a new HumatroPen to match the new cartridge strength.
Only use the following HUMATROPE cartridges with the following HumatroPen:
- 6 mg cartridge with HumatroPen 6 mg
- 12 mg cartridge with HumatroPen 12 mg
- 24 mg cartridge with HumatroPen 24 mg
HUMATROPE Cartridge Kit (See Figure A)
- 1 Cartridge with 6 mg, 12 mg, or 24 mg of powdered HUMATROPE
- 1 prefilled syringe with Diluent (the liquid used to mix the powdered HUMATROPE)
Note: There are 3 strengths of HUMATROPE Cartridges that have different amounts of HUMATROPE (6 mg, 12 mg, or 24 mg). Make sure that you have the Cartridge that your healthcare provider prescribed.
Mixing the HUMATROPE in the Cartridge
Only use the prefilled Diluent Syringe that comes with your HUMATROPE Cartridge Kit to mix the HUMATROPE in the Cartridge. Do not use the diluent that comes in the HUMATROPE vial box, or any other liquid.
HUMATROPE Cartridge Kit mixing Instructions
| Parts (Figure A) |
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Only use a HUMATROPE Cartridge Kit to prepare the HUMATROPE Cartridge.
*Note: The liquid (Diluent) should be clear, colorless, and free of particles and is shown as blue in the figure
(See Figure A).
| Preparing Your New HUMATROPE Cartridge | |||
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Start by thoroughly washing your hands. Remove all contents from the tray. Note: The HUMATROPE Cartridge is made for left or right handed use so you may handle it the way that is most comfortable for you. | Hold the gray needle cover at the bottom of the Diluent Syringe. | Pull the needle cover straight down to remove from the Diluent Syringe and throw it away. Do not push the plunger yet. It is okay if a drop of Diluent is seen. You do not have to release air from the Diluent Syringe. | |
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Hold the Cartridge, with the black triangles up toward the Diluent Syringe. Make sure the Cartridge and Diluent Syringe are facing each other in a straight line. Do not insert the Cartridge at an angle. | Push the Cartridge straight into the Diluent Syringe until it stops and the black triangles are covered inside the Diluent Syringe. You may hear or feel a click. Do not twist the Cartridge. | Hold the Diluent Syringe and the Cartridge together with both hands. Push and release the plunger 2 or 3 times until the Diluent is in the Cartridge. | |
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| Remove your thumb from the plunger and check that the Diluent Syringe is empty. It is normal for small drops of Diluent to remain in the Diluent Syringe. | With your thumb off the plunger, pull the Cartridge away from the Diluent Syringe. | Place the end cap on a hard, flat surface. Push the Diluent Syringe onto the end cap and throw away the Diluent Syringe right away as instructed by your healthcare provider. | |
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Mix the medicine in the Cartridge by gently moving it in an up and down motion 10 times. Then let the Cartridge sit for 3 minutes. Do not shake. | Check the HUMATROPE liquid, it should be clear. If the liquid is clear, your Cartridge is now prepared and ready to be attached to your HumatroPen (See the Instructions for Use for HumatroPen 6 mg, 12 mg or 24 mg). If the liquid is cloudy or contains particles, gently mix the medicine in the Cartridge 10 more times. Let the Cartridge sit for 5 more minutes. If the liquid still remains cloudy or contains particles, do not use the Cartridge. Contact your healthcare provider or call Lilly at 1-800-545-5979 or go to www.humatrope.com. If you have questions about preparing your HUMATROPE Cartridge, you should contact your healthcare provider. | ||
Talk to your healthcare provider about the right way to use your HUMATROPE Cartridge Kit and HumatroPen injection device, the right sites to inject HUMATROPE, and how to rotate your injection sites.
Disposing of used Diluent Syringes:
- Put your used Diluent Syringes in a FDA-cleared sharps disposal container right away after use. Do not throw away (dispose of) loose needles and syringes in your household trash.
If you do not have a FDA-cleared sharps disposal container, you may use a household container that is:
- made of a heavy-duty plastic,
- can be closed with a tight-fitting, puncture-resistant lid, without sharps being able to come out,
- upright and stable during use,
- leak-resistant, and
- properly labeled to warn of hazardous waste inside the container.
- When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used needles and syringes. Do not reuse or share your needles or syringes with other people. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to the FDA's website at: http://www.fda.gov/safesharpsdisposal.
- Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this. Do not recycle your used sharps disposal container.
This Instructions for Use has been approved by the U.S. Food and Drug Administration.
HUMATROPE® and HumatroPen® are registered trademarks of Eli Lilly and Company.
Copyright © 2019, 2025 Eli Lilly and Company. All rights reserved.
Revised: November 2025
Manufactured by: Eli Lilly and Company, Indianapolis, IN 46285, USA
US License Number 1891
www.HUMATROPE.com
HTRCART-0003-IFU-20251125
Humatrope 6 mg HumatroPen Instuctions for Use
Instructions for Use
HumatroPen® 6 mg
(HU-ma-tro-Pen 6 mg)
HUMATROPE® Delivery System Device for use only with HUMATROPE® (somatropin) 6 mg Cartridges
![]() | 6 mg |
Section 1: Read Section 1 completely before you move on to Section 2.
What you need to know about HumatroPen® 6 mg
Read this Instructions for Use including the “Commonly asked questions” section, at the end of this Instructions for Use, before you start using HumatroPen 6 mg and each time you get a new Pen. There may be new information. This information does not take the place of talking to your healthcare provider about your or your child's medical condition or treatment.
Your healthcare provider should show you how to use HumatroPen (Pen) the right way before you use it for the first time. Ask your healthcare provider if you have any questions.
If you are having problems using the HumatroPen 6 mg, call Lilly at 1-800-545-5979 or go to www.humatrope.com.
Introduction
Intended Use:
- The HumatroPen 6 mg is a reusable pen-injector designed for self-administration of human growth hormone. The pen-injector is intended for use with the specified HUMATROPE 6 mg Cartridges and single use, detachable and disposable Pen Needles (supplied separately). Your healthcare provider will prescribe the HUMATROPE dose and Pen that is right for you or your child. Do not change your dose or use another type of Pen unless your healthcare provider tells you to.
- If your healthcare provider changes the prescribed cartridge strength from the 6 mg HUMATROPE Cartridge to the 12 mg or 24 mg HUMATROPE Cartridge, you will need to get a new HumatroPen to match the new cartridge strength.
Contraindications:
There are no known contraindications for HumatroPen 6 mg.
Important information about HumatroPen 6 mg:
- Do not use the Pen if any part of the Pen or Cartridge looks broken or damaged. Contact your healthcare provider.
- Make sure that you have a 6 mg HUMATROPE Cartridge to match the HumatroPen 6 mg. If the strength on the label for the Cartridge and the Pen do not match, do not use them and contact your healthcare provider. It is important to use the correct Pen and Cartridge to make sure that you inject the correct dose of HUMATROPE.
- Do not use the HUMATROPE Cartridge past the expiration date.
- Follow the instructions in Section 2 only to set up a new Cartridge before you use it for the first time.
- Follow the instructions in Section 3 of this Instructions for Use for every injection.
- Do not transfer the contents of the HUMATROPE Cartridge to a syringe.
Do not share your HumatroPen 6 mg or Pen Needles with anyone else, even if the Needle has been changed. You may give other people a serious infection or get a serious infection from them.- The HumatroPen 6 mg is not recommended for use by blind or visually impaired individuals without the help of a sighted individual trained on how to use it.
Information about Needles used with HumatroPen 6 mg:
- Pen Needles are not included with HumatroPen. You may need a prescription to get the Needles from your pharmacist.
- Becton, Dickinson and Company Pen Needles are recommended for use with the HumatroPen 6 mg.
- Ask your healthcare provider what size Needle is best for you to use.
- Use of the Hidden Needle Cover with your HumatroPen is optional.
- When using the Hidden Needle Cover with your HumatroPen, you must use a Needle length of 5 mm or longer.
Read the Hidden Needle Cover Instructions for Use. - Follow your healthcare provider's instructions about how to safely handle Needles.
- Always remove the Pen Needle after each injection and use a new Needle with each injection. This helps reduce the risk of infection, prevent leakage of HUMATROPE, reduce air bubbles, and reduce Needle clogs.
- For information on the right way to throw away (dispose of) used Needles, see “Disposing of used Needles” at the end of this Instructions for Use.
How do I care for HumatroPen 6 mg?
- Soiled parts including the Hidden Needle Cover can be cleaned with a damp cloth. Do not use alcohol or any other cleaning product.
Keep dry.- Do not apply oil or any other lubricant.
How do I store HumatroPen 6 mg with an attached cartridge?
Store HumatroPen 6 mg between -40°C (-40°F) to 70°C (158°F) without the Humatrope 6 mg Cartridge.- After attaching a prepared HUMATROPE cartridge to your HumatroPen 6 mg, store it in the storage case in the refrigerator between 36°F to 46°F (+2°C to +8°C) until it is time for your next injection.
- Before injecting a dose of HUMATROPE, take the Pen out of the refrigerator and let it sit for 10 minutes to allow it to reach room temperature. Injecting medicine that is cold can cause discomfort. Do not leave the HumatroPen 6 mg and HUMATROPE cartridge out of the refrigerator for more than 30 minutes a day.
- HUMATROPE Cartridges attached to a Pen can be stored in the refrigerator for up to 28 days. Do not use a prepared Cartridge after 28 days.
- Do not freeze.
- Do not store the Pen with the Needle attached.
- Protect HUMATROPE Cartridges attached to the Pen from light during storage.
When do I need to replace and dispose my HumatroPen?
Do not use your Pen for more than 3 years after first use or past the Use-by date on the carton, whichever comes first.
The expired Pen may be discarded in your household trash after you have removed the Needle.
Record the date the Pen was first used here: __ / __ / __.
Record the Use-by date from your carton here: __ / __ / __.
Contact your healthcare provider if you need a new HumatroPen 6 mg, or when the Pen has been used for 3 years.
Please see the accompanying complete Humatrope Patient Information Sheet.
For more information, call Lilly at 1-800-545-5979 or go to www.humatrope.com.
| HumatroPen 6 mg Parts |
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Section 2: Read Section 2 only after you have read Section 1.
Getting Started
Be sure to follow the reconstitution (mixing) directions in the HUMATROPE Cartridge Kit.- Perform the New Cartridge Set-up only 1 time at the beginning of each new Cartridge preparation.
- For daily use, do not repeat the 1 time only New Cartridge Set-up. If you repeat the 1 time only New Cartridge Set-up, you may run out of HUMATROPE early.
New Cartridge Set-up
| Step 2A – Check the Pen and Cartridge | ||
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Important Notes:
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Important Note:
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| Step 2B – Attach the Cartridge | ||
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Important Note: If the Cartridge is not completely attached, the screw may not move, and cause you to inject the wrong dose. | |
| Step 2C – Attach the Needle | ||
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| Step 2D – Remove air from new Cartridge | |
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Important Notes:
- The Pen must be set-up before injecting the first dose from each new 6 mg Cartridge.
- Setting up the new Cartridge is important to remove large air bubbles that may be present after mixing the HUMATROPE 6 mg Cartridge.
- If liquid is not seen at the Needle tip after you have tried several times to remove air from the new Cartridge as instructed in Step 2D, contact your healthcare provider or Lilly at 1-800-545-5979.
Step 2E – Continue on to Daily Use
- Do not repeat the New Cartridge Set-up before each dose.
- Leave the Cartridge attached and do not remove it until the Cartridge is empty.
- If you are ready to inject the first dose and you have finished setting up your Pen with a new Cartridge, go to Section 3, Step 3C.
- If you are using the Hidden Needle Cover with HumatroPen 6 mg, read the Hidden Needle Cover Instructions for Use.
Section 3: Now that you have done the 1 time only New Cartridge Set-up, follow Section 3 for each of your daily injections.
- Remove the prepared Pen with the Cartridge attached from your refrigerator.
- Let the Pen with Cartridge attached stand at room temperature for 10 minutes before injecting.
Daily Use Before your injection: Take the Pen out of the refrigerator and let it sit for 10 minutes before injecting to allow it to reach room temperature. Injecting medicine that is cold can cause discomfort. |
| Step 3A – Check the Pen | ||
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Important Note: Do not use the Pen if any part of the Pen or Cartridge appears broken or damaged. Contact your healthcare provider. |
Important Note: Do not use the Cartridge past the expiration date. |
Important Note:
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| Step 3B – Attach a new disposable Pen Needle for each injection. | ||
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Important Note: Talk to your healthcare provider about the right way to use the Pen, and the optional Hidden Needle Cover, the right sites to inject HUMATROPE, and how to rotate your injection sites. When using the Hidden Needle Cover with your HumatroPen, you must use a Needle length of 5 mm or longer. Read the Hidden Needle Cover Instructions for Use.
Step 3C – Dial and inject the dose
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Important Note: Confirm the dose dialed matches the prescribed dose. Your dose may be different than the dose shown in the figure above.
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| Important Note: It is possible to set a dose larger than the amount of HUMATROPE left in the Cartridge.
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Step 3D – Remove and dispose of the Needle
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Important Note: Do not remove this Cartridge from the Pen until the Cartridge is empty or needs to be replaced to help prevent you from giving the wrong dose.
Step 3E – Store Pen and Cartridge for next use
- See, “How do I store HumatroPen 6 mg?” in Section 1 of this Instructions for Use for more information.
- When it is time for the next scheduled dose, go to Section 3, and repeat Steps 3A through 3D.
- When using the Hidden Needle Cover with HumatroPen 6 mg, repeat steps 1 to 10 of the Hidden Needle Cover Instructions for Use.
Commonly asked questions:
- 1.
Do I need to perform the New Cartridge Setup before every dose?
- No. You only need to perform the New Cartridge Set-up 1 time for each Cartridge, just before a new Cartridge is used for the first time.
- The purpose of the New Cartridge Set-up is to make sure the HumatroPen 6 mg with an attached HUMATROPE 6 mg Cartridge are ready to use.
- If you repeat the New Cartridge Set-up before each routine dose, you may run out of HUMATROPE early. The small amount of medicine used in the New Cartridge Set-up will not affect the amount of HUMATROPE in the Cartridge.
- 2.
What should I do if the Cartridge label and Pen do not match?
- Do not use the Pen if the Cartridge strength on the HUMATROPE Cartridge label does not match the number on the Pen's front housing. This is important to make sure the correct dose of HUMATROPE is given.
- Contact your healthcare provider for a replacement.
- 3.
What should I do if the HUMATROPE is not clear?
- Do not use the Pen if the liquid is cloudy or contains particles. Contact your healthcare provider or call Lilly at 1-800-545-5979 or go to www.humatrope.com.
- 4.
Why are there air bubbles in the Cartridge?
- Air bubbles may remain in the Cartridge after mixing.
If the Pen is stored with a Needle attached, air bubbles may form in the Cartridge.
Do not store the Pen with a Needle attached.
- Follow the instructions in Section 2, Step 2D (Remove air from new Cartridge) to remove air bubbles from the Cartridge.
- It is normal to see small air bubbles. It will not cause any harm or affect the dose.
- 5.
What should I do if the screw does not move out when there is no Cartridge attached to the Pen?
- The screw may not move out when you push the Injection Button unless there is a Cartridge in the Pen. This allows you to easily push the screw into the Pen body when replacing a Cartridge.
- After a Cartridge is attached, the screw will move out when the Injection Button is pushed.
- 6.
What should I do if I cannot attach the Cartridge to the Pen body?
- Check that the Cartridge is not damaged or broken.
- Carefully line up the Cartridge with the Pen body and screw them together until secure. If the Cartridge and Pen cannot be screwed together, contact your healthcare provider.
- 7.
Why is it hard to push the Injection Button when I try to inject the dose?
- The Needle may be clogged. Try attaching a new Needle.
- Pushing the Injection Button down quickly may make the Injection Button harder to push. Pushing the Injection Button more slowly may make it easier.
- Using a larger Needle will make it easier to push the Injection Button during injection. Ask your healthcare provider which Needle is best for you.
- The Injection Button may become harder to push if the inside of the Pen gets dirty with HUMATROPE, food, drink, or other materials.
- 8.
What should I do if the dose knob does not go to zero (0) when I inject the dose?
- This can happen if the HUMATROPE Cartridge does not have enough HUMATROPE left in it for the full dose.
- At the end of the injection, the number in the dose window should be 0.00. If you see any number other than “0.00”, this is the amount of HUMATROPE you did not receive. Write this number down and follow the steps below to get the rest of your dose.
To get the rest of your dose:
- Remove the Needle and empty Cartridge from the Pen.
- Insert a new Cartridge, attach a new Needle, and remove air from the new Cartridge (see Steps 2A through 2D).
- Complete your dose by injecting only the amount you did not receive (see Step 3C).
- If you still do not think you received your full dose, do not take another dose. Call Lilly at 1-800-545-5979 or your healthcare provider for assistance.
- 9.
What should I do if I see HUMATROPE leaking from the Needle after I have finished the injection?
It is normal for a single drop to remain on the tip of the Needle after the injection is complete. If you see more than 1 drop:
- The full dose may not have been delivered. Do not inject another dose. Talk with your healthcare provider for assistance.
- To prevent this, for the next dose, firmly push and hold the Injection Button in and slowly count to 5 (see Section 3, Step 3C).
- 10.
How can I tell when the injection is complete?
The injection is complete when:
- You place your thumb on the Injection Button, then slowly and firmly push the Injection Button until it stops moving.
- Continue to hold the Injection Button for 5 seconds, then remove the Needle from the skin.
- You will see 0.00 in the center of the dose window.
If you have any questions or problems with your HumatroPen 6 mg, contact Lilly at 1-800-545-5979 or your healthcare professional for assistance.
Report all MEDICAL DEVICE COMPLAINTS or UNDESIRABLE SIDE EFFECTS, including SUSPECTED SERIOUS INCIDENTS, to Eli Lilly and Company, by contacting them at 1-800-545-5979.
You are also encouraged to report all UNDESIRABLE SIDE EFFECTS, including SUSPECTED SERIOUS INCIDENTS, to the U.S. FOOD & DRUG Administration (US FDA) by:
- Visiting the MedWatch web page on reporting an adverse event or serious problem to FDA at (https://www.fda.gov/safety/reporting-serious-problems-fda/how-consumers-can-report-adverse-event-or-serious-problem-fda) or
- Calling FDA’s toll-free information line at 1-800-INFO-FDA (1-888-463-6332).
Disposing of used Needles:
Put your used Needles in a FDA-cleared sharps disposal container right away after use. Do not throw away (dispose of) loose Needles in your household trash.If you do not have a FDA-cleared sharps disposal container, you may use a household container that is:
- made of a heavy-duty plastic,
- can be closed with a tight-fitting, puncture-resistant lid, without sharps being able to come out,
- upright and stable during use,
- leak-resistant, and
- properly labeled to warn of hazardous waste inside the container.
- When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used Needles. Do not reuse or share your Needles with other people. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to the FDA's website at: http://www.fda.gov/safesharpsdisposal.
- Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this. Do not recycle your used sharps disposal container.
This Instructions for Use has been approved by the U.S. Food and Drug Administration.


Eli Lilly and Company
Pharmaceutical Delivery Systems
Lilly Corporate Center
Indianapolis, IN 46285, USA
US License Number 1891

Eli Lilly Nederland B.V.
Papendorpseweg 83
3528 BJ UTRECHT
The Netherlands
HUMATROPE® and HumatroPen® 6 mg are registered trademarks of Eli Lilly and Company.
| The HumatroPen® 6 mg meets the current dose accuracy and functional requirements of ISO 11608-1 and is for use with HUMATROPE® 6 mg Cartridges only. |
Copyright © 2009, 2025, Eli Lilly and Company. All rights reserved.
Revised: November 2025
Non-harmonized Symbol Glossary1

1 Glossary includes non-harmonized symbols used in the labeling.
2 Symbol used only on the carton.
HTRPEN6-0006-IFU-20251125
Humatrope 12 mg HumatroPen Instuctions for Use
Instructions for Use
HumatroPen® 12 mg
(HU-ma-tro-Pen 12 mg)
HUMATROPE® Delivery System Device for use only with HUMATROPE® (somatropin) 12 mg Cartridges
![]() | 12 mg |
Section 1: Read Section 1 completely before you move on to Section 2.
What you need to know about HumatroPen ® 12 mg
Read this Instructions for Use including the “Commonly asked questions” section, at the end of this Instructions for Use before you start using HumatroPen 12 mg and each time you get a new Pen. There may be new information. This information does not take the place of talking to your healthcare provider about your or your child's medical condition or treatment.
Your healthcare provider should show you how to use HumatroPen (Pen) the right way before you use it for the first time. Ask your healthcare provider if you have any questions.
If you are having problems using the HumatroPen 12 mg, call Lilly at 1-800-545-5979 or go to www.humatrope.com.
Introduction
Intended Use:
- The HumatroPen 12 mg is a reusable pen-injector designed for self-administration of human growth hormone. The pen-injector is intended for use with the specified HUMATROPE 12 mg Cartridges and single use, detachable and disposable pen needles (supplied separately). Your healthcare provider will prescribe the HUMATROPE dose and Pen that is right for you or your child. Do not change your dose or use another type of pen unless your healthcare provider tells you to.
- If your healthcare provider changes the prescribed cartridge strength from the 12 mg HUMATROPE Cartridge to the 6 mg or 24 mg HUMATROPE Cartridge, you will need to get a new HumatroPen to match the new cartridge strength.
Contraindications:
There are no known contraindications for HumatroPen 12 mg.
Important information about HumatroPen 12 mg:
- Do not use the Pen if any part of the Pen or Cartridge looks broken or damaged. Contact your healthcare provider.
- Make sure that you have a 12 mg HUMATROPE Cartridge to match the HumatroPen 12 mg. If the strength on the label for the Cartridge and the Pen do not match, do not use them and contact your healthcare provider. It is important to use the correct Pen and Cartridge to make sure that you inject the correct dose of HUMATROPE.
- Do not use the HUMATROPE Cartridge past the expiration date.
- Follow the instructions in Section 2 only to set up a new Cartridge before you use it for the first time.
- Follow the instructions in Section 3 of this Instructions for Use for every injection.
- Do not transfer the contents of the HUMATROPE Cartridge to a syringe.
Do not share your HumatroPen 12 mg or Pen Needles with anyone else, even if the Needle has been changed. You may give other people a serious infection or get a serious infection from them.- The HumatroPen 12 mg is not recommended for use by blind or visually impaired individuals without the help of a sighted individual trained on how to use it.
Information about Needles used with HumatroPen 12 mg:
- Pen Needles are not included with HumatroPen. You may need a prescription to get the Needles from your pharmacist.
- Becton, Dickinson and Company Pen Needles are recommended for use with the HumatroPen 12 mg.
- Ask your healthcare provider what size Needle is best for you to use.
- Use of the Hidden Needle Cover with your HumatroPen is optional.
- When using the Hidden Needle Cover with your HumatroPen, you must use a Needle length of 5 mm or longer.
Read the Hidden Needle Cover Instructions for Use. - Follow your healthcare provider's instructions about how to safely handle Needles.
- Always remove the Pen Needle after each injection and use a new Needle with each injection. This helps reduce the risk of infection, prevent leakage of HUMATROPE, reduce air bubbles, and reduce Needle clogs.
- For information on the right way to throw away (dispose of) used Needles see “Disposing of used Needles” at the end of this Instructions for Use.
How do I care for HumatroPen 12 mg?
- Soiled parts including the Hidden Needle Cover can be cleaned with a damp cloth. Do not use alcohol or any other cleaning product.
Keep dry.- Do not apply oil or any other lubricant.
How do I store HumatroPen 12 mg with an attached cartridge?
Store HumatroPen 12 mg between -40°C (-40°F) to 70°C (158°F) without the Humatrope 12 mg Cartridge.- After attaching a prepared HUMATROPE cartridge to your HumatroPen 12 mg, store it in the storage case in the refrigerator between 36°F to 46°F (+2°C to +8°C) until it is time for your next injection.
- Before injecting a dose of HUMATROPE, take the Pen out of the refrigerator and let it sit for 10 minutes to allow it to reach room temperature. Injecting medicine that is cold can cause discomfort. Do not leave the HumatroPen 12 mg and HUMATROPE cartridge out of the refrigerator for more than 30 minutes a day.
- HUMATROPE Cartridges attached to a Pen can be stored in the refrigerator for up to 28 days. Do not use a prepared Cartridge after 28 days.
- Do not freeze.
- Do not store the Pen with the Needle attached.
- Protect HUMATROPE Cartridges attached to the Pen from light during storage.
When do I need to replace and dispose my HumatroPen?
Do not use your pen for more than 3 years after the first use or past the Use-by date on the carton, whichever comes first.
The expired Pen may be discarded in your household trash after you have removed the Needle.
Record the date the Pen was first used here: __ / __ / __.
Record the Use-by date from your carton here: __ / __ / __.
Contact your healthcare provider if you need a new HumatroPen 12 mg, or when the Pen has been used for 3 years.
Please see the accompanying complete Humatrope Patient Information Sheet.
For more information, call Lilly at 1-800-545-5979 or go to www.humatrope.com.
| HumatroPen 12 mg Parts |
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Section 2: Read Section 2 only after you have read Section 1.
Getting Started
Be sure to follow the reconstitution (mixing) directions in the HUMATROPE Cartridge Kit.- Perform the New Cartridge Set-up only 1 time at the beginning of each new Cartridge preparation.
- For daily use, do not repeat the 1 time only New Cartridge Set-up. If you repeat the 1 time only New Cartridge Set-up, you may run out of HUMATROPE early.
New Cartridge Set-up
| Step 2A – Check the Pen and Cartridge | ||
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Important Notes:
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Important Note:
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| Step 2B – Attach the Cartridge | ||
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Important Note: If the Cartridge is not completely attached, the screw may not move, and cause you to inject the wrong dose. | |
| Step 2C – Attach the Needle | ||
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|
| Step 2D – Remove air from new Cartridge | |
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|
|
Important Notes:
- The Pen must be set-up before injecting the first dose from each new 12 mg Cartridge.
- Setting up the new Cartridge is important to remove large air bubbles that may be present after mixing the HUMATROPE 12 mg Cartridge.
- If liquid is not seen at the Needle tip after you have tried several times to remove air from the new Cartridge as instructed in Step 2D, contact your healthcare provider or Lilly at 1-800-545-5979.
Step 2E – Continue on to Daily Use
- Do not repeat the New Cartridge Set-up before each dose.
- Leave the Cartridge attached and do not remove it until the Cartridge is empty.
- If you are ready to inject the first dose and you have finished setting up your Pen with a new Cartridge, go to Section 3, Step 3C.
- If you are using the Hidden Needle Cover with HumatroPen 12 mg, read the Hidden Needle Cover Instructions for Use.
Section 3: Now that you have done the 1 time only New Cartridge Set-up, follow Section 3 for each of your daily injections.
- Remove the prepared Pen with the Cartridge attached from your refrigerator.
- Let the Pen with Cartridge attached stand at room temperature for 10 minutes before injecting.
Daily Use Before your injection: Take the Pen out of the refrigerator and let it sit for 10 minutes before injecting to allow it to reach room temperature. Injecting medicine that is cold can cause discomfort. |
| Step 3A – Check the Pen | ||
![]() | ![]() | ![]() |
Important Note: Do not use the Pen if any part of the Pen or Cartridge appears broken or damaged. Contact your healthcare provider. |
Important Note: Do not use the Cartridge past the expiration date. |
Important Note:
|
| Step 3B – Attach a new disposable Pen Needle for each injection. | |||
![]() | ![]() | ![]() |
|
|
| |
Important Note: Talk to your healthcare provider about the right way to use the Pen, and the optional Hidden Needle Cover, the right sites to inject HUMATROPE, and how to rotate your injection sites. When using the Hidden Needle Cover with your HumatroPen, you must use a Needle length of 5 mm or longer. Read the Hidden Needle Cover Instructions for Use.
Step 3C – Dial and inject the dose
![]() | ![]() | ![]() | ![]() | |
Important Note: Confirm the dose dialed matches the prescribed dose. Your dose may be different than the dose shown in the figure above.
|
|
| Important Note: It is possible to set a dose larger than the amount of HUMATROPE left in the Cartridge.
|
Step 3D – Remove and dispose of the Needle
![]() | ![]() | ![]() |
|
|
|
Important Note: Do not remove this Cartridge from the Pen until the Cartridge is empty or needs to be replaced to help prevent you from giving the wrong dose.
Step 3E – Store Pen and Cartridge for next use
- See, “How do I store HumatroPen 12 mg?” in Section 1 of this Instructions for Use for more information.
- When it is time for the next scheduled dose, go to Section 3, and repeat Steps 3A through 3D.
- When using the Hidden Needle Cover with HumatroPen 12 mg, repeat steps 1 to 10 of the Hidden Needle Cover Instructions for Use.
Commonly asked questions:
- 1.
Do I need to perform the New Cartridge Setup before every dose?
- No. You only need to perform the New Cartridge Set-up 1 time for each Cartridge, just before a new Cartridge is used for the first time.
- The purpose of the New Cartridge Set-up is to make sure the HumatroPen 12 mg with an attached HUMATROPE 12 mg Cartridge are ready to use.
- If you repeat the New Cartridge Set-up before each routine dose, you may run out of HUMATROPE early. The small amount of medicine used in the New Cartridge Set-up will not affect the amount of HUMATROPE in the Cartridge.
- 2.
What should I do if the Cartridge label and Pen do not match?
- Do not use the Pen if the Cartridge strength on the HUMATROPE Cartridge label does not match the number on the Pen's Front Housing. This is important to make sure the correct dose of HUMATROPE is given.
- Contact your healthcare provider for a replacement.
- 3.
What should I do if the HUMATROPE is not clear?
- Do not use the Pen if the liquid is cloudy or contains particles. Contact your healthcare provider or call Lilly at 1-800-545-5979 or go to www.humatrope.com.
- 4.
Why are there air bubbles in the Cartridge?
- Air bubbles may remain in the Cartridge after mixing.
If the Pen is stored with a Needle attached, air bubbles may form in the Cartridge.
Do not store the Pen with a Needle attached.
- Follow the instructions in Section 2, Step 2D (Remove air from new Cartridge) to remove air bubbles from the Cartridge.
- It is normal to see small air bubbles. It will not cause any harm or affect the dose.
- 5.
What should I do if the screw does not move out when there is no Cartridge attached to the Pen?
- The screw may not move out when you push the Injection Button unless there is a Cartridge in the Pen. This allows you to easily push the screw into the Pen Body when replacing a Cartridge.
- After a Cartridge is attached, the screw will move out when the Injection Button is pushed.
- 6.
What should I do if I cannot attach the Cartridge to the Pen Body?
- Check that the Cartridge is not damaged or broken.
- Carefully line up the Cartridge with the Pen Body and screw them together until secure. If the Cartridge and Pen cannot be screwed together, contact your healthcare provider.
- 7.
Why is it hard to push the Injection Button when I try to inject the dose?
- The Needle may be clogged. Try attaching a new Needle.
- Pushing the Injection Button down quickly may make the Injection Button harder to push. Pushing the Injection Button more slowly may make it easier.
- Using a larger Needle will make it easier to push the Injection Button during injection. Ask your healthcare provider which Needle is best for you.
- The Injection Button may become harder to push if the inside of the Pen gets dirty with HUMATROPE, food, drink, or other materials.
- 8.
What should I do if the dose knob does not go to zero (0) when I inject the dose?
- This can happen if the HUMATROPE Cartridge does not have enough HUMATROPE left in it for the full dose.
- At the end of the injection, the number in the dose window should be 0.00. If you see any number other than “0.00”, this is the amount of HUMATROPE you did not receive. Write this number down and follow the steps below to get the rest of your dose.
To get the rest of your dose:
- Remove the Needle and empty Cartridge from the Pen.
- Insert a new Cartridge, attach a new Needle, and remove air from the new Cartridge (see Steps 2A through 2D).
- Complete your dose by injecting only the amount you did not receive (see Step 3C).
- If you still do not think you received your full dose, do not take another dose. Call Lilly at 1-800-545-5979 or your healthcare provider for assistance.
- 9.
What should I do if I see HUMATROPE leaking from the Needle after I have finished the injection?
It is normal for a single drop to remain on the tip of the Needle after the injection is complete. If you see more than 1 drop:
- The full dose may not have been delivered. Do not inject another dose. Talk with your healthcare provider for assistance.
- To prevent this, for the next dose, firmly push and hold the Injection Button in and slowly count to 5 (see Section 3, Step 3C).
- 10.
How can I tell when the injection is complete?
The injection is complete when:
- You place your thumb on the injection Button, then slowly and firmly push the Injection Button until it stops moving.
- Continue to hold the Injection Button for 5 seconds, then remove the Needle from the skin.
- You will see 0.00 in the center of the dose window.
If you have any questions or problems with your HumatroPen 12 mg, contact Lilly at 1-800-545-5979 or your healthcare professional for assistance.
Report all MEDICAL DEVICE COMPLAINTS or UNDESIRABLE SIDE EFFECTS, including SUSPECTED SERIOUS INCIDENTS, to Eli Lilly and Company, by contacting them at 1-800-545-5979.
You are also encouraged to report all UNDESIRABLE SIDE EFFECTS, including SUSPECTED SERIOUS INCIDENTS, to the U.S. FOOD & DRUG Administration (US FDA) by:
- Visiting the MedWatch web page on reporting an adverse event or serious problem to FDA at (https://www.fda.gov/safety/reporting-serious-problems-fda/how-consumers-can-report-adverse-event-or-serious-problem-fda) or
- Calling FDA’s toll-free information line at 1-800-INFO-FDA (1-888-463-6332).
Disposing of used Needles:
Put your used Needles in a FDA-cleared sharps disposal container right away after use. Do not throw away (dispose of) loose Needles in your household trash.If you do not have a FDA-cleared sharps disposal container, you may use a household container that is:
- made of a heavy-duty plastic,
- can be closed with a tight-fitting, puncture-resistant lid, without sharps being able to come out,
- upright and stable during use,
- leak-resistant, and
- properly labeled to warn of hazardous waste inside the container.
- When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used Needles. Do not reuse or share your Needles with other people. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to the FDA's website at: http://www.fda.gov/safesharpsdisposal.
- Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this. Do not recycle your used sharps disposal container.
This Instructions for Use has been approved by the U.S. Food and Drug Administration.


Eli Lilly and Company
Pharmaceutical Delivery Systems
Lilly Corporate Center
Indianapolis, IN 46285, USA
US License Number 1891

Eli Lilly Nederland B.V.
Papendorpseweg 83
3528 BJ UTRECHT
The Netherlands
HUMATROPE® and HumatroPen® 12 mg are registered trademarks of Eli Lilly and Company.
| The HumatroPen® 12 mg meets the current dose accuracy and functional requirements of ISO 11608-1 and is for use with HUMATROPE® 12 mg Cartridges only. |
Copyright © 2009, 2025, Eli Lilly and Company. All rights reserved.
Revised: November 2025
Non-harmonized Symbol Glossary1

1 Glossary includes non-harmonized symbols used in the labeling.
2 Symbol used only on the carton.
HTRPEN12-0006-IFU-20251125
Humatrope 24 mg HumatroPen Instuctions for Use
Instructions for Use
HumatroPen® 24 mg
(HU-ma-tro-Pen 24 mg)
HUMATROPE® Delivery System Device for use only with HUMATROPE® (somatropin) 24 mg Cartridges
![]() | 24 mg |
Section 1: Read Section 1 completely before you move on to Section 2.
What you need to know about HumatroPen ® 24 mg
Read this Instructions for Use including the “Commonly asked questions” section, at the end of this Instructions for Use, before you start using HumatroPen 24 mg and each time you get a new Pen. There may be new information. This information does not take the place of talking to your healthcare provider about your or your child's medical condition or treatment.
Your healthcare provider should show you how to use HumatroPen (Pen) the right way before you use it for the first time. Ask your healthcare provider if you have any questions.
If you are having problems using the HumatroPen 24 mg, call Lilly at 1-800-545-5979 or go to www.humatrope.com.
Introduction
Intended Use:
- The HumatroPen 24 mg is a reusable pen-injector designed for self-administration of human growth hormone. The pen-injector is intended for use with the specified HUMATROPE 24 mg Cartridges and single use, detachable and disposable Pen Needles (supplied separately). Your healthcare provider will prescribe the HUMATROPE dose and Pen that is right for you or your child. Do not change your dose or use another type of pen unless your healthcare provider tells you to.
- If your healthcare provider changes the prescribed cartridge strength from the 24 mg HUMATROPE Cartridge to the 6 mg or 12 mg HUMATROPE Cartridge, you will need to get a new HumatroPen to match the new cartridge strength.
Contraindications:
There are no known contraindications for HumatroPen 24 mg.
Important information about HumatroPen 24 mg:
- Do not use the Pen if any part of the Pen or Cartridge looks broken or damaged. Contact your healthcare provider.
- Make sure that you have a 24 mg HUMATROPE Cartridge to match the HumatroPen 24 mg. If the strength on the label for the Cartridge and the Pen do not match, do not use them and contact your healthcare provider. It is important to use the correct Pen and Cartridge to make sure that you inject the correct dose of HUMATROPE.
- Do not use the HUMATROPE Cartridge past the expiration date.
- Follow the instructions in Section 2 only to set up a new Cartridge before you use it for the first time.
- Follow the instructions in Section 3 of this Instructions for Use for every injection.
- Do not transfer the contents of the HUMATROPE Cartridge to a syringe.
Do not share your HumatroPen 24 mg or Pen Needles with anyone else, even if the Needle has been changed. You may give other people a serious infection or get a serious infection from them.- The HumatroPen 24 mg is not recommended for use by blind or visually impaired individuals without the help of a sighted individual trained on how to use it.
Information about Needles used with HumatroPen 24 mg:
- Pen Needles are not included with HumatroPen. You may need a prescription to get the Needles from your pharmacist.
- Becton, Dickinson and Company Pen Needles are recommended for use with the HumatroPen 24 mg.
- Ask your healthcare provider what size Needle is best for you to use.
- Use of the Hidden Needle Cover with your HumatroPen is optional.
- When using the Hidden Needle Cover with your HumatroPen, you must use a Needle length of 5 mm or longer.
Read the Hidden Needle Cover Instructions for Use. - Follow your healthcare provider's instructions about how to safely handle Needles.
- Always remove the Pen Needle after each injection and use a new Needle with each injection. This helps reduce the risk of infection, prevent leakage of HUMATROPE, reduce air bubbles, and reduce Needle clogs.
- For information on the right way to throw away (dispose of) used Needles see “Disposing of used Needles” at the end of this Instructions for Use.
How do I care for HumatroPen 24 mg?
- Soiled parts including the Hidden Needle Cover can be cleaned with a damp cloth. Do not use alcohol or any other cleaning product.
Keep dry.- Do not apply oil or any other lubricant.
How do I store HumatroPen 24 mg with an attached cartridge?
Store HumatroPen 24 mg between -40°C (-40°F) to 70°C (158°F) without the Humatrope 24 mg Cartridge.- After attaching a prepared HUMATROPE cartridge to your HumatroPen 24 mg, store it in the storage case in the refrigerator between 36°F to 46°F (+2°C to +8°C) until it is time for your next injection.
- Before injecting a dose of HUMATROPE, take the Pen out of the refrigerator and let it sit for 10 minutes to allow it to reach room temperature. Injecting medicine that is cold can cause discomfort. Do not leave the HumatroPen 24 mg and HUMATROPE cartridge out of the refrigerator for more than 30 minutes a day.
- HUMATROPE Cartridges attached to a Pen can be stored in the refrigerator for up to 28 days. Do not use a prepared Cartridge after 28 days.
- Do not freeze.
- Do not store the Pen with the Needle attached.
- Protect HUMATROPE Cartridges attached to the Pen from light during storage.
When do I need to replace and dispose my HumatroPen?
Do not use your pen for more than 3 years after the first use or past the Use-by date on the carton, whichever comes first.
The expired Pen may be discarded in your household trash after you have removed the Needle.
Record the date the Pen was first used here: __ / __ / __.
Record the Use-by date from your carton here: __ / __ / __.
Contact your healthcare provider if you need a new HumatroPen 24 mg, or when the Pen has been used for 3 years.
Please see the accompanying complete Humatrope Patient Information Sheet.
For more information, call Lilly at 1-800-545-5979 or go to www.humatrope.com.
| HumatroPen 24 mg Parts |
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Section 2: Read Section 2 only after you have read Section 1.
Getting Started
Be sure to follow the reconstitution (mixing) directions in the HUMATROPE Cartridge Kit.- Perform the New Cartridge Set-up only 1 time at the beginning of each new Cartridge preparation.
- For daily use, do not repeat the 1 time only New Cartridge Set-up. If you repeat the 1 time only New Cartridge Set-up, you may run out of HUMATROPE early.
New Cartridge Set-up
| Step 2A – Check the Pen and Cartridge | ||
| ![]() | ![]() |
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Important Note:
|
| Step 2B – Attach the Cartridge | ||
![]() | ![]() | |
|
Important Note: If the Cartridge is not completely attached, the screw may not move, and cause you to inject the wrong dose. | |
| Step 2C – Attach the Needle | ||
![]() | ![]() | ![]() |
|
|
|
| Step 2D – Remove air from new Cartridge | |
![]() | ![]() |
|
|
Important Notes:
- The Pen must be set-up before injecting the first dose from each new 24 mg Cartridge.
- Setting up the new Cartridge is important to remove large air bubbles that may be present after mixing the HUMATROPE 24 mg Cartridge.
- If liquid is not seen at the Needle tip after you have tried several times to remove air from the new Cartridge as instructed in Step 2D, contact your healthcare provider or Lilly at 1-800-545-5979.
Step 2E – Continue on to Daily Use
- Do not repeat the New Cartridge Set-up before each dose.
- Leave the Cartridge attached and do not remove it until the Cartridge is empty.
- If you are ready to inject the first dose and you have finished setting up your Pen with a new Cartridge, go to Section 3, Step 3C.
- If you are using the Hidden Needle Cover with HumatroPen 24 mg, read the Hidden Needle Cover Instructions for Use.
Section 3: Now that you have done the 1 time only New Cartridge Set-up, follow Section 3 for each of your daily injections.
- Remove the prepared Pen with the Cartridge attached from your refrigerator.
- Let the Pen with Cartridge attached stand at room temperature for 10 minutes before injecting.
| Daily Use |
Before your injection: Take the Pen out of the refrigerator and let it sit for 10 minutes before injecting to allow it to reach room temperature. Injecting medicine that is cold can cause discomfort. Step 3A – Check the Pen | ||
![]() | ![]() | ![]() | |
Important Note: Do not use the Pen if any part of the Pen or Cartridge appears broken or damaged. Contact your healthcare provider. |
Important Note: Do not use the Cartridge past the expiration date. |
Important Note:
|
| Step 3B – Attach a new disposable Pen Needle for each injection. | |||
![]() | ![]() | ![]() |
|
|
| |
Important Note: Talk to your healthcare provider about the right way to use the Pen, and the optional Hidden Needle Cover, the right sites to inject HUMATROPE, and how to rotate your injection sites. When using the Hidden Needle Cover with your HumatroPen, you must use a Needle length of 5 mm or longer. Read the Hidden Needle Cover Instructions for Use.
Step 3C – Dial and inject the dose
![]() | ![]() | ![]() | ![]() |
Important Note: Confirm the dose dialed matches the prescribed dose. Your dose may be different than the dose shown in the figure above.
|
|
| Important Note: It is possible to set a dose larger than the amount of HUMATROPE left in the Cartridge.
|
Step 3D – Remove and dispose of the Needle
![]() | ![]() | ![]() |
|
|
|
Important Note: Do not remove this Cartridge from the Pen until the Cartridge is empty or needs to be replaced to help prevent you from giving the wrong dose.
Step 3E – Store Pen and Cartridge for next use
- See, “How do I store HumatroPen 24 mg?” in Section 1 of this Instructions for Use for more information.
- When it is time for the next scheduled dose, go to Section 3, and repeat Steps 3A through 3D.
- When using the Hidden Needle Cover with HumatroPen 24 mg, repeat steps 1 to 10 of the Hidden Needle Cover Instructions for Use.
Commonly asked questions:
- 1.
Do I need to perform the New Cartridge Setup before every dose?
- No. You only need to perform the New Cartridge Set-up 1 time for each Cartridge, just before a new Cartridge is used for the first time.
- The purpose of the New Cartridge Set-up is to make sure the HumatroPen 24 mg with an attached HUMATROPE 24 mg Cartridge are ready to use.
- If you repeat the New Cartridge Set-up before each routine dose, you may run out of HUMATROPE early. The small amount of medicine used in the New Cartridge Set-up will not affect the amount of HUMATROPE in the Cartridge.
- 2.
What should I do if the Cartridge label and Pen do not match?
- Do not use the Pen if the Cartridge strength on the HUMATROPE Cartridge label does not match the number on the Pen's Front Housing. This is important to make sure the correct dose of HUMATROPE is given.
- Contact your healthcare provider for a replacement.
- 3.
What should I do if the HUMATROPE is not clear?
- Do not use the Pen if the liquid is cloudy or contains particles. Contact your healthcare provider or call Lilly at 1-800-545-5979 or go to www.humatrope.com.
- 4.
Why are there air bubbles in the Cartridge?
- Air bubbles may remain in the Cartridge after mixing.
If the Pen is stored with a Needle attached, air bubbles may form in the Cartridge.
Do not store the Pen with a Needle attached.
- Follow the instructions in Section 2, Step 2D (Remove air from new Cartridge) to remove air bubbles from the Cartridge.
- It is normal to see small air bubbles. It will not cause any harm or affect the dose.
- 5.
What should I do if the screw does not move out when there is no Cartridge attached to the Pen?
- The screw may not move out when you push the Injection Button unless there is a Cartridge in the Pen. This allows you to easily push the screw into the Pen body when replacing a Cartridge.
- After a Cartridge is attached, the screw will move out when the Injection Button is pushed.
- 6.
What should I do if I cannot attach the Cartridge to the Pen Body?
- Check that the Cartridge is not damaged or broken.
- Carefully line up the Cartridge with the Pen body and screw them together until secure. If the Cartridge and Pen cannot be screwed together, contact your healthcare provider.
- 7.
Why is it hard to push the Injection Button when I try to inject the dose?
- The Needle may be clogged. Try attaching a new Needle.
- Pushing the Injection Button down quickly may make the Injection Button harder to push. Pushing the Injection Button more slowly may make it easier.
- Using a larger Needle will make it easier to push the Injection Button during injection. Ask your healthcare provider which Needle is best for you.
- The Injection Button may become harder to push if the inside of the Pen gets dirty with HUMATROPE, food, drink, or other materials.
- 8.
What should I do if the dose knob does not go to zero (0) when I inject the dose?
- This can happen if the HUMATROPE Cartridge does not have enough HUMATROPE left in it for the full dose.
- At the end of the injection, the number in the dose window should be 0.00. If you see any number other than “0.00”, this is the amount of HUMATROPE you did not receive. Write this number down and follow the steps below to get the rest of your dose.
To get the rest of your dose:
- Remove the Needle and empty Cartridge from the Pen.
- Insert a new Cartridge, attach a new Needle, and remove air from the new Cartridge (see Steps 2A through 2D).
- Complete your dose by injecting only the amount you did not receive (see Step 3C).
- If you still do not think you received your full dose, do not take another dose. Call Lilly at 1-800-545-5979 or your healthcare provider for assistance.
- 9.
What should I do if I see HUMATROPE leaking from the Needle after I have finished the injection?
It is normal for a single drop to remain on the tip of the Needle after the injection is complete. If you see more than 1 drop:
- The full dose may not have been delivered. Do not inject another dose. Talk with your healthcare provider for assistance.
- To prevent this, for the next dose, firmly push and hold the Injection Button in and slowly count to 5 (see Section 3, Step 3C).
- 10.
How can I tell when the injection is complete?
The injection is complete when:
- You place your thumb on the Injection Button, then slowly and firmly push the Injection Button until it stops moving.
- Continue to hold the Injection Button for 5 seconds, then remove the Needle from the skin.
- You will see 0.00 in the center of the dose window.
If you have any questions or problems with your HumatroPen 24 mg, contact Lilly at 1-800-545-5979 or your healthcare professional for assistance.
Report all MEDICAL DEVICE COMPLAINTS or UNDESIRABLE SIDE EFFECTS, including SUSPECTED SERIOUS INCIDENTS, to Eli Lilly and Company, by contacting them at 1-800-545-5979.
You are also encouraged to report all UNDESIRABLE SIDE EFFECTS, including SUSPECTED SERIOUS INCIDENTS, to the U.S. FOOD & DRUG Administration (US FDA) by:
- Visiting the MedWatch web page on reporting an adverse event or serious problem to FDA at (https://www.fda.gov/safety/reporting-serious-problems-fda/how-consumers-can-report-adverse-event-or-serious-problem-fda) or
- Calling FDA’s toll-free information line at 1-800-INFO-FDA (1-888-463-6332).
Disposing of used Needles:
Put your used Needles in a FDA-cleared sharps disposal container right away after use. Do not throw away (dispose of) loose Needles in your household trash.If you do not have a FDA-cleared sharps disposal container, you may use a household container that is:
- made of a heavy-duty plastic,
- can be closed with a tight-fitting, puncture-resistant lid, without sharps being able to come out,
- upright and stable during use,
- leak-resistant, and
- properly labeled to warn of hazardous waste inside the container.
- When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used Needles. Do not reuse or share your Needles with other people. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to the FDA's website at: http://www.fda.gov/safesharpsdisposal.
- Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this. Do not recycle your used sharps disposal container.
This Instructions for Use has been approved by the U.S. Food and Drug Administration.


Eli Lilly and Company
Pharmaceutical Delivery Systems
Lilly Corporate Center
Indianapolis, IN 46285, USA
US License Number 1891

Eli Lilly Nederland B.V.
Papendorpseweg 83
3528 BJ UTRECHT
The Netherlands
HUMATROPE® and HumatroPen® 24 mg are registered trademarks of Eli Lilly and Company.
| The HumatroPen® 24 mg meets the current dose accuracy and functional requirements of ISO 11608-1 and is for use with HUMATROPE® 24 mg Cartridges only. |
Copyright © 2009, 2025, Eli Lilly and Company. All rights reserved.
Revised: November 2025
Non-harmonized Symbol Glossary1

1 Glossary includes non-harmonized symbols used in the labeling.
2 Symbol used only on the carton.
HTRPEN24-0006-IFU-20251125
Humatrope Hidden Needle Cover for use with HumatroPen Instuctions for Use
Instructions for Use
Hidden Needle Cover
For use with HumatroPen ® (6 mg, 12 mg, or 24 mg)
![]() |
What you need to know about the Hidden Needle Cover
Read this Instructions for Use for the Hidden Needle Cover before you use it. There may be new information. This information does not take the place of talking to your healthcare provider about your or your child's medical condition or treatment.
Your healthcare provider should show you how to use the Hidden Needle Cover with the HumatroPen the right way before you use it for the first time. Ask your healthcare provider if you have any questions. If you are having problems using the Hidden Needle Cover with the HumatroPen (6 mg, 12 mg or 24 mg) call Lilly at 1-800-545-5979 or go to www. Humatrope.com.
The Hidden Needle Cover allows you to give your injection with the needle hidden from view. Be sure the HumatroPen is set up by following the steps in the HumatroPen Instructions for Use.

What kinds of needles can be used with the Hidden Needle Cover?
- Pen needles are not included. You may need a prescription from your healthcare provider to get the needles from your pharmacist.
- Becton, Dickinson and Company pen needles are recommended for use with the HumatroPen.
- Use of the Hidden Needle Cover with your HumatroPen is optional.
- When using the Hidden Needle Cover with your HumatroPen, you must use a needle length of 5 mm or longer.
- Ask your healthcare provider which needle is best for you.
| 1 | Be sure the HumatroPen cap is removed. Remove the paper tab and attach a new needle to the Cartridge, and remove the outer needle cap and inner needle cap. Read Section 2A and 2B of the HumatroPen Instructions for Use for detailed instructions to set-up the HumatroPen. Read Section 2C of the HumatroPen Instructions for Use for detailed instructions to attach the needle. Follow your healthcare provider's instructions on the safe handling of needles. |
| 2 | Confirm the Hidden Needle Cover is in the locked position. If it is not locked, turn the slider so that the guide post is in the guide channel, in the locked position, as shown. Be sure to turn the slider to the locked position, do not push the slider. The Hidden Needle Cover should now be in the locked position. It is important to make sure the slider is in the locked position to help avoid accidental needle sticks in the next step. | ![]() |
| 3 | Insert the Pen with attached Cartridge and needle straight into the locked Hidden Needle Cover by pushing firmly until it stops. Do not block the opening of the Hidden Needle Cover with your hand or fingers, while performing this step. | ![]() |
| 4 | Unlock the Hidden Needle Cover by turning the slider until the guide post is in the guide channel, in the unlocked position as shown. To avoid accidental needle sticks, be careful not to push the slider in after it is unlocked. | ![]() |
| 5 | Turn the dose knob to the prescribed dose. If you turn past the prescribed dose, you can correct the dose by turning down to the right dose. The dose knob clicks as you turn it. Do not dial your dose by counting clicks because you may dial the wrong dose. Read the HumatroPen Instructions for Use: Step 3C “Dial and inject the dose” for detailed instructions on how to give your injection. | ![]() |
| 6 | Injections can be given in the following areas:
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| 7 | Insert the needle at a 90-degree angle as shown by your healthcare provider. The slider will move over the Hidden Needle Cover Body as the needle is inserted. Place your thumb on the injection button, then slowly and firmly push the injection button until it stops moving. Continue to hold the injection button for 5 seconds, then remove the needle from the skin. The Hidden Needle Cover will automatically lock as you remove the needle from the skin. Check to make sure you see a 0.00 in the dose window. This means that the complete dose was injected. Important Note: It is possible to set a dose larger than the amount of HUMATROPE left in the Cartridge. At the end of the injection, the number in the dose window should be 0.00. If it is not, this is the amount of HUMATROPE you did not receive. Write this number down. Remove the Hidden Needle Cover, needle and empty Cartridge from the Pen. Insert a new Cartridge, attach a new needle, and remove air from the new Cartridge. Attach the Hidden Needle Cover. Complete your dose by injecting only the amount you did not receive. If you still do not think you received your full dose, do not take another dose. Call Lilly at 1-800-545-5979 or your healthcare provider for assistance. | ![]() ![]() |
| 8 | After you have completed your injection confirm that the Hidden Needle Cover has returned to the locked position. Carefully pull the Hidden Needle Cover straight off to remove it from the Pen. Note: If the Hidden Needle Cover did not return to the locked position, you can still remove the Hidden Needle Cover from the Pen by pulling it straight off. | ![]() |
| 9 | Read Step 3D “Remove and dispose of the needle” in the Instructions for Use for the HumatroPen. |
| 10 | Read Step 3E “Store Pen and Cartridge for next use” in the Instructions for Use for the HumatroPen. |
| 11 | Read “Commonly asked questions” in the Instructions for Use for the HumatroPen. |
| 12 | Read “Disposing of used needles” in the Instructions for Use for the HumatroPen. |
This Instructions for Use has been approved by the U.S. Food and Drug Administration.
Eli Lilly and Company
Pharmaceutical Delivery Systems
Lilly Corporate Center
Indianapolis, IN 46285, USA
US License Number 1891
HUMATROPE® and HumatroPen® are registered trademarks of Eli Lilly and Company.
Copyright © 2009, 2023, Eli Lilly and Company. All rights reserved.
Revised December 2023
HTRHNC-0003-IFU-20231208



















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