Cleveland Clinic logo
Search

Somatropin Injection

What is this medication?

SOMATROPIN (soe ma TROE pin) treats growth hormone deficiency. It may also be used to treat reduced or slowed growth caused by some conditions. It works by increasing levels of growth hormones in the body. This increases bone and muscle growth. It belongs to a group of medications known as human growth hormones (hGH).

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): Biotropin, Genotropin, Genotropin Intra-Mix, Genotropin MiniQuick, Humatrope, Norditropin, Norditropin FlexPro, Norditropin Nordiflex, Nutropin, Nutropin AQ, Nutropin AQ NuSpin, Nutropin Depot, Omnitrope, Saizen, Saizen Click.Easy Cartridge, Saizen Saizenprep Cartridge, Serostim, Serostim LQ, Tev-Tropin, ZOMACTON, Zorbtive

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions:

  • Are a child who has stopped growing
  • Are a child with Prader-Willi syndrome
  • Are a child with scoliosis or a curved spine
  • Cancer
  • Diabetes
  • Eye disease caused by diabetes
  • Low adrenal gland function
  • Low thyroid levels
  • Lung or breathing disease, such as asthma or COPD
  • Recent surgery or trauma
  • Sleep apnea
  • An unusual or allergic reaction to somatropin, other medications, foods, dyes, or preservatives
  • Pregnant or trying to get pregnant
  • Breastfeeding

How should I use this medication?

This medication is injected under the skin or into a muscle. It is usually given by your care team in a hospital or clinic setting. It may also be given at home.

If you get this medication at home, you will be taught how to prepare and give it. Use exactly as directed. Take it as directed on the prescription label. Keep taking it unless your care team tells you to stop. Each cartridge is designed for use only with the appropriate delivery pen. Make sure you use the pen delivery device that matches your cartridge.

Advertisement

It is important that you put your used needles and syringes in a special sharps container. Do not put them in a trash can. If you do not have a sharps container, call your pharmacist or care team to get one.

This medication comes with INSTRUCTIONS FOR USE. Ask your pharmacist for directions on how to use this medication. Read the information carefully. Talk to your pharmacist or care team if you have questions.

Talk to your care team about the use of this medication in children. While it may be prescribed for children as young as 2 years for selected conditions, precautions do apply.

People over 65 years of age may have a stronger reaction and need a smaller dose.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medication?

  • Estrogen hormones
  • Medications for diabetes
  • Steroid medications, such as prednisone or cortisone

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Visit your care team for regular checks on your progress. It may be some time before you see the benefit from this medication.

You may need blood work done while you are taking this medication.

Talk to your care team about your risk of cancer. You may be more at risk for certain types of cancer if you take this medication.

If you use a pen device, do not share it with anyone. Each pen should only be used by one person. Sharing could cause an infection.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible:

  • Allergic reactions or angioedema—skin rash, itching or hives, swelling of the face, eyes, lips, tongue, arms, or legs, trouble swallowing or breathing
  • Bone or joint pain
  • High blood sugar (hyperglycemia)—increased thirst or amount of urine, unusual weakness or fatigue, blurry vision
  • Increased pressure around the brain—severe headache, blurry vision, change in vision, nausea, vomiting
  • Lipodystrophy—hardening or scarring of tissue at injection site
  • Low adrenal gland function—nausea, vomiting, loss of appetite, unusual weakness or fatigue, dizziness
  • Low thyroid levels (hypothyroidism)—unusual weakness or fatigue, increased sensitivity to cold, constipation, hair loss, dry skin, weight gain, feelings of depression
  • Pancreatitis—severe stomach pain that spreads to your back or gets worse after eating or when touched, fever, nausea, vomiting
  • Sleep apnea—loud snoring, gasping or choking during sleep, daytime sleepiness
  • Swelling of the ankles, hands, or feet, shortness of breath or trouble breathing, sudden weight gain

Advertisement

Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):

  • Burning or tingling sensation in hands or feet
  • Headache
  • Muscle pain
  • Pain, redness, or irritation at injection site
  • Upset stomach

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

Keep out of the reach of children and pets.

You will be instructed on how to store this medication. Get rid of any unused medication after the expiration date.

To get rid of medications that are no longer needed or have expired:

  • Take the medication to a medication take-back program. Check with your pharmacy or law enforcement to find a location.
  • If you cannot return the medication, ask your pharmacist or care team how to get rid of this medication safely.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

Advertisement

Copyright ©2026 Elsevier Inc. All Rights Reserved.

Terms of use.

Note: Introduction and Additional Common Questions written and medically approved by Cleveland Clinic professionals.

Ad