See also Warning section.
Redness, itching, pain, or swelling at the injection site may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: fast/irregular/pounding heartbeat, stomach pain, blood in the stools, mental/mood changes, severe headache, easy bruising or bleeding, dark urine, yellowing eyes and skin, leg pain or swelling, numbness or tingling of the arms/hands/legs/feet, unsteadiness, unexplained muscle weakness, difficulty with speaking/chewing/swallowing/facial movements, vision changes, extreme fatigue, joint pain, butterfly-shaped rash on the nose and cheeks.
Get medical help right away if you have any very serious side effects, including: seizures, chest pain.
Tell your doctor right away if you develop signs of infection while using this drug, such as: fever, chills, night sweats, persistent sore throat, trouble breathing, painful or frequent urination, persistent cough, unusual vaginal discharge, white patches in the mouth (oral thrush).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.