You should not use semaglutide if you have multiple endocrine neoplasia type 2 (tumors in your glands), a personal or family history of medullary thyroid cancer, insulin-dependent diabetes, or diabetic ketoacidosis.
Call your doctor at once if you have signs of a thyroid tumor, such as swelling or a lump in your neck, trouble swallowing, a hoarse voice, or shortness of breath.
Before taking this medicine
You should not use semaglutide if you are allergic to it, or if you have:
multiple endocrine neoplasia type 2 (tumors in your glands);
a personal or family history of medullary thyroid carcinoma (a type of thyroid cancer); or
diabetic ketoacidosis (call your doctor for treatment).
Tell your doctor if you have ever had:
a stomach or intestinal disorder;
pancreatitis;
kidney disease; or
eye problems caused by diabetes (retinopathy).
In animal studies, semaglutide caused thyroid tumors or thyroid cancer. It is not known whether these effects would occur in people using regular doses. Ask your doctor about your risk.
Semaglutide may harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Semaglutide can have long-lasting effects on your body. Avoid getting pregnant for at least 2 months after you stop using  semaglutide.
You should not breastfeed while using semaglutide.
Semaglutide is not approved for use by anyone younger than 18 years old.
