Headache, dizziness, flushing, drowsiness, nausea, vomiting, or sweating 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 any of these unlikely but serious side effects occur: signs of infection (e.g., fever, persistent sore throat), pain/swelling/redness at injection site, pain/swelling/redness of arms/legs, bluish skin, sudden weight gain, shortness of breath, back/chest pain.
Tell your doctor right away if any of these rare but very serious side effects occur: mental/mood changes, bone pain, muscle weakness, yellowing skin/eyes, dark urine, easy bruising/bleeding, severe stomach/abdominal pain, trouble breathing.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention 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 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.