Nausea, vomiting, diarrhea, upset stomach, gas, stomach cramping/pain, weight loss, dizziness, headache, tiredness, or constipation may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
To lessen stomach/intestinal symptoms, follow a low-fat diet as instructed by your doctor or dietician. Taking this medication at least 2 hours after the evening meal may also help lessen these side effects.
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.
Vomiting/diarrhea that doesn't stop may result in a serious loss of body water (dehydration). Contact your doctor promptly if you notice any symptoms of dehydration, such as unusual decreased urination, unusual dry mouth/thirst, fast heartbeat, or dizziness/lightheadedness.
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, severe dizziness, itching/swelling (especially of the face/tongue/throat), 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.