See also Warnings section.
Nausea, vomiting, stomach upset, diarrhea, and loss of appetite may occur. Changes in diet such as eating several small meals or limiting physical activity may help lessen the chance of nausea. In some cases, drug therapy may be necessary to prevent or relieve nausea and vomiting. If any of these effects persist or worsen, notify 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 immediately if any of these unlikely but serious side effects occur: mouth sores, shaking/tremors, muscle problems (e.g., twitching, stiffness, weakness), unsteadiness, joint pain, lower back pain/side pain, frequent/painful urination, numbness/tingling of the hands or feet, swelling of the legs/feet, mental/mood changes (e.g., confusion, hallucinations), stopping of menstrual periods.
Tell your doctor immediately if any of these rare but very serious side effects occur: seizures, trouble breathing, severe stomach/abdominal pain, yellowing of the skin/eyes, dark urine, inability to move arms/legs.
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: 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.