Somatrogon
Written By Dr. Sakshi Jain
Reviewed By Dr. Rajeev SharmaLast updated 10 Mar 2026 | 07:26 PM (UTC)
Somatrogon Uses
Somatrogon is used in the treatment of Growth disturbances due to growth hormone deficiency.
How Somatrogon works
Somatrogon is a long-lasting version of human growth hormone that helps people whose bodies do not produce enough of this important hormone naturally. When Somatrogon enters the bloodstream, it travels to tissues such as the liver, muscles, and bones and attaches to specific cells. It sends a signal inside the cells, prompting them to produce a substance called insulin-like growth factor-1 (IGF-1). IGF-1 is responsible for most of the actual growth effects in the body. What makes Somatrogon different from regular growth hormone treatments is that it is designed to stick around in your body much longer. Somatrogon helps your bones grow longer (especially important for children and teens), supports your body in building proteins (the building blocks your body needs), and helps regulate how your body grows and uses energy, essentially doing everything natural growth hormone does.
Common side effects of Somatrogon
Injection site reactions (pain, swelling, redness), Fever, Headache
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Expert advice for Somatrogon
- Take Somatrogon exactly as prescribed. Do not stop using it without your doctor’s advice.
- Change injection spots every week. Use the thigh, belly, or arm; rotating prevents lumps from forming. Do not use the same spot twice.
- Always check the liquid before injecting. It should look completely clear. Do not use it and get a replacement pen from the pharmacy if it is cloudy or has particles.
- A small amount of the medicine may remain in the pen after all doses have been correctly given. This is normal. Patients should not try to use the remaining solution.
- Use a brand-new needle each time, and do not reuse the needles. Old needles can cause infections. Fresh needles are always safer.
Frequently asked questions for Somatrogon
No. Somatrogon must not be used in children with active cancer or tumors, diabetic retinopathy, serious acute illness (such as after major surgery, trauma, or respiratory failure), or known allergy to its ingredients. The doctor will decide if this medicine is suitable for the individual.
The main difference is convenience; instead of giving your child a shot every single day, Somatrogon only needs to be injected once a week. Somatrogon is designed to release slowly and steadily throughout the week, so it keeps working between doses. The effects on growth are similar to daily injections.
The best injection sites are areas with a bit of fatty tissue under the skin: the abdomen (belly), the front and outer thighs, the back of the upper arms, and the buttocks. It is important to rotate the sites where you inject each week; do not use the same spot repeatedly. This rotation helps prevent skin irritation, lumps, or changes in how well the medication absorbs. Your healthcare provider can show you the best technique and specific spots to use.
Yes, Somatrogon can affect how your body handles sugar, and in some cases, it may raise blood sugar levels. This does not mean everyone will develop problems, but it is something to be aware of, especially if there is diabetes in your family. Your doctor will likely check your child's blood sugar levels periodically during treatment. Watch for signs like increased thirst, frequent urination, or unusual tiredness, and report these to your doctor.
Before you first use the pen, keep it in the refrigerator (not the freezer). Once you have started using a pen, you can keep it in the fridge or at room temperature (25°C) for up to 28 days. Always keep the cap on when you are not using it. Check the manufacturer's instructions that come with your specific pen, as storage guidelines can vary slightly.
No. Discontinuing the medication without consulting your doctor may compromise treatment goals. Always consult your doctor before making changes.