Triptorelin: Uses, Dosage, Side Effects & Warnings.

Generic name: triptorelin [ TRIP-toe-REL-in ]
Brand names: Trelstar, Triptodur, Trelstar Depot, Trelstar LA, Trelstar LA Mixject, Trelstar Depot Mixject, Trelstar Mixject
Dosage forms: intramuscular powder for injection (11.25 mg/3 months; 22.5 mg/6 months; 3.75 mg/month), … show all 2 dosage forms
Drug classes: Gonadotropin releasing hormones, Hormones / antineoplastics

Medically reviewed by Philip Thornton, DipPharm. Last updated on Jan 16, 2025.

Triptorelin is a man-made form of a hormone that regulates many processes in the body.

The Trelstar brand of triptorelin is used in men to treat the symptoms of prostate cancer. Trelstar treats only the symptoms of prostate cancer and does not treat the cancer itself.

The Triptodur brand of triptorelin is used to treat precocious puberty in boys and girls who are at least 2 years old.

Do not use triptorelin if you are pregnant. Use effective birth control, and tell your doctor if you become pregnant during treatment.

Some people using triptorelin have had new or worsening mental problems or seizures (convulsions). Call your doctor right away if you have a seizure, or any unusual changes in mood or behavior (anger, aggression, crying, feeling restless or irritable).

Triptorelin can cause a temporary increase in certain hormones, especially when you first start using this medicine. This may cause side effects that are similar to the condition being treated.