This medication is given by slow injection (usually over 30 minutes or 60 minutes) into a vein by a health care professional. It is given as directed by your doctor, usually every 2 weeks or every 3 weeks.

Infusion reactions may happen during the infusion of this drug. Your doctor may prescribe other medications (such as antihistamines, acetaminophen) before each treatment to help prevent these side effects. Tell your doctor right away if you have any symptoms of infusion reactions such as shaking, back pain/spasms, chest tightness, chills, flushing, rapid heartbeat, dizziness, or skin tingling/burning.

The dosage is based on your medical condition, weight, and response to treatment.

You should receive this medication regularly to get the most benefit from it. To help you remember, mark your calendar to keep track of when to receive the next dose.