Headache, diarrhea, weakness, nausea, and dizziness may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.
To avoid dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
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: unusual bleeding/bruising, black stools, swelling of the ankles/feet, rapid/difficult breathing, fainting, stomach/abdominal pain, unusual tiredness, change in the amount of urine, pink/bloody urine, vomit that looks like coffee grounds.
Seek immediate medical attention if any of these rare but very serious side effects occur: chest/jaw/left arm pain, confusion/mental changes, fast/irregular/pounding heartbeat, slurred speech, vision changes, weakness on one side of the body.
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.