Injection site reactions (such as pain, redness, soreness, and swelling) may occur. Nausea, chills, joint aches, neck pain, and headache may also occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Immediately after injection, you may experience flushing, chest pain, fast heartbeat, anxiety, shortness of breath, or itching. This injection reaction usually starts to occur after you have used the drug for a few months but can occur after any injection. These symptoms disappear fairly quickly and usually do not require treatment. If these symptoms do not go away in a few minutes, seek immediate medical attention. Tell your doctor right away about this reaction before your next injection. Ask your doctor if you should continue using this medication.
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: dizziness/fainting, chest pain, signs of infection (such as fever, persistent sore throat), mental/mood changes (such as depression), severe pain at the injection site, shakiness (tremor), swelling of the legs/feet (water retention), vision problems.
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 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.