This medication is given by slow injection (over 2 to 5 minutes) under the skin by a health care professional. It is given as directed by your doctor, usually once every 3 weeks. The injection is given in the thigh and the injection site and side are changed each time to lessen injury under the skin. The dosage is based on your medical condition and response to treatment.

Use this medication regularly to get the most benefit from it. To help you remember, mark your calendar with a reminder.

Serious reactions, including an allergic reaction, may happen with your injection, usually within 24 hours after your dose. Your doctor may prescribe other medications (such as acetaminophen, diphenhydramine) before each dose to help prevent these side effects. Get medical help right away if you have any symptoms of serious reactions such as fever, chills, flushing, headache, nausea/vomiting, coughing, chest pain, trouble breathing, itching/swelling (especially of the face/tongue/throat), dizziness, weakness, or feeling faint.