See also Warning section.
Drowsiness, dizziness, nausea, constipation, blurred vision, or headache may occur. 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 right away if any of these unlikely but serious side effects occur: mental/mood changes, slurred speech, clumsiness, trouble walking, decreased/increased interest in sex, tremor, uncontrollable movements, facial or muscle twitching, trouble urinating, sleep disturbances.
Tell your doctor right away if any of these highly unlikely but very serious side effects occur: fainting, stomach/abdominal pain, persistent nausea, vomiting, fatigue, yellowing eyes or skin, dark urine, persistent sore throat or fever.
A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction 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 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.