Drug information provided by: Merative, Micromedex®

It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to use it.

Using this medicine could harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. Tell your doctor right away if you think you have become pregnant.

Do not use this medicine together with clarithromycin (Biaxin®), erythromycin (Erythrocin®), indinavir (Crixivan®), itraconazole (Sporanox®), ketoconazole (Nizoral®), nelfinavir (Viracept®), ritonavir (Norvir®), or troleandomycin (Tao®).

This medicine may be habit-forming. If you feel that the medicine is not working as well, do not use more than your prescribed dose. Call your doctor for instructions.

If you think you or someone else may have taken an overdose of this medicine, get emergency help at once. Signs of an overdose include: blurred vision, change in consciousness, dizziness, faintness, or lightheadedness when getting up suddenly from a lying position, headache, nervousness, numbness, tingling, pain, and bluish color of the fingernails, lips, skin, palms, or nail beds, loss of consciousness, pale, clammy skin, pounding in the ears, sweating, unusual tiredness or weakness, or vomiting.

This medicine may cause stomach problems (eg, retroperitoneal fibrosis). Check with your doctor right away if you have continuing or severe stomach pain, increased frequency of urination, continuing loss of appetite, lower back pain, continuing or severe nausea and vomiting, or weakness.

Check with your doctor right away if you have chest pain or tightness, or trouble breathing. These may be symptoms of a lung problem (eg, pleuropulmonary fibrosis).

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 or vitamin supplements.