Headache, dizziness, lightheadedness, fainting, unusual tiredness, heartburn, indigestion, nausea, vomiting, or diarrhea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
To reduce the risk of 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.
This medication has rarely caused serious bleeding. If you notice any of the following unlikely but serious signs of bleeding, tell your doctor right away: unusual bleeding from the vagina, coughing up blood, bleeding around catheter site, signs of stomach/intestinal bleeding (such as black/bloody stools, vomit that contains blood or looks like coffee grounds), signs of bleeding in the brain (such as severe headache, weakness on one side of the body, vision problems, slurred speech, confusion).
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.