Nausea/vomiting, diarrhea, stomach/abdominal pain, mouth sores, constipation, hemorrhoids, headache, dizziness, tiredness, muscle/joint pain, or trouble sleeping may occur. If any of these effects last or get worse, tell 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 you have any serious side effects, including: increased thirst/urination, signs of kidney problems (such as change in the amount of urine), signs of infection (such as sore throat that doesn't go away, fever), easy bruising/bleeding, unusual tiredness, vomit that is bloody or looks like coffee grounds, black/tarry stool.
Get medical help right away if you have any very serious side effects, including: symptoms of lung problems (such as cough, shortness of breath, chest pain), fast/irregular heartbeat, severe dizziness, fainting.
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.