It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly. Blood tests may be needed to check for unwanted effects.
Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
Serious heart problems can occur with this medicine. Check with your doctor right away if you are having fast, pounding, or irregular heartbeats; shortness of breath; or unusual tiredness or weakness.
Stop using this medicine and check with your doctor right away if you have pain or tenderness in the upper stomach; pale stools; dark urine; a loss of appetite; nausea; unusual tiredness or weakness; or yellow eyes or skin. These could be symptoms of a serious liver problem.
Check with your doctor immediately if severe diarrhea occurs while taking this medicine. You may need certain medicines to help manage or prevent the diarrhea.
Stop using this medicine and check with your doctor right away if you start having breathing problems, shortness of breath, a cough, chest pain, fever, or chills. These could be symptoms of a serious lung problem.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal (e.g., St. John's Wort) or vitamin supplements.