Compounded semaglutide and compounded tirzepatide
Warning: possible risk of thyroid C-cell tumors
In studies in rodents, semaglutide and tirzepatide caused thyroid C-cell tumors. It is not known whether they cause thyroid C-cell tumors, including medullary thyroid carcinoma (MTC), in people. Do not use if you or any of your family have ever had MTC, or if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2). Tell your clinician right away if you get a lump or swelling in your neck, trouble swallowing, hoarseness, or shortness of breath.
Semaglutide is a GLP-1 receptor agonist and tirzepatide is a dual GIP/GLP-1 receptor agonist. Both are prescription injections used, where a licensed clinician decides it is appropriate, alongside a reduced-calorie diet and increased physical activity for weight management.
Compounded semaglutide and tirzepatide are prepared by state-licensed compounding pharmacies. Compounded drugs are not FDA-approved and are not reviewed by the FDA for safety, effectiveness or quality. Treatment requires an online evaluation with an independent licensed healthcare provider, who decides whether it is appropriate for you; not everyone is approved.
Before starting, tell your clinician if you have or have had pancreatitis (inflammation of the pancreas), kidney, liver or pancreas problems, thyroid tumors, gallbladder problems, diabetic retinopathy, severe stomach or digestion problems, depression or thoughts of suicide, or if you are pregnant, breastfeeding, or planning to become pregnant (these medications should be stopped before a planned pregnancy; your clinician will advise when), or if you are taking insulin, a sulfonylurea, or any other medications. Tirzepatide may make birth control pills less effective; use a non-oral method, or add a barrier method, for 4 weeks after starting and for 4 weeks after each dose increase.
Nausea, vomiting, diarrhea, constipation, indigestion, mild stomach (abdominal) pain, and fatigue. These are usually mild but tell your clinician if they persist or worsen.
This is not a complete list of possible side effects. Call your clinician for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.