Girls may have a light menstrual flow during the first month of treatment. Contact your doctor if there is any vaginal bleeding after the first month. Irritation, redness, or swelling may occur on the skin where injections are given. If these reactions are severe, contact your doctor. If you have swelling around the mouth, hives, itching, or trouble breathing, stop using the medicine and call your doctor at once.
Serious reactions can occur.
If you become pregnant while receiving these injections, contact your doctor right away. Swelling around the mouth, hives, itching, and trouble breathing. Tell your doctor if you have any side effects that continue or get worse. No specific drug interactions have been reported. However, be sure that you tell all doctors who treat you about all medicines you are taking, including nonprescription products.