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bosentan - oral, Tracleer (cont.)

PRECAUTIONS: See also Warning section.Before taking bosentan, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, anemia.This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages since they can increase the effects of dizziness and also increase the risk of serious liver problems.This medication must not be used during pregnancy. It may harm an unborn baby. Therefore, it is important to prevent pregnancy while using this medication. Discuss the use of at least two reliable forms of birth control (such as condoms, birth control pills) with your doctor. If you become pregnant or think you may be pregnant, tell your doctor immediately.It is not known whether this medication passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this medication is not recommended. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: cyclosporine, glyburide.Other medications can affect the removal of bosentan from your body, which may affect how bosentan works. Examples include amiodarone, cimetidine, tacrolimus, St. John's wort, anti-seizure drugs including carbamazepine, azole antifungals including itraconazole/ketoconazole, macrolide antibiotics including erythromycin, HIV protease inhibitors including ritonavir, rifamycins including rifabutin, among others.This drug can speed up the removal of other drugs from your body, which may affect how they work. Examples of affected drugs include "statin" cholesterol medications (such as simvastatin, lovastatin), warfarin, among others.This medication may decrease the effectiveness of hormonal birth control such as pills, patch, or ring. This could cause pregnancy. Discuss with your doctor or pharmacist about using an additional reliable birth control method while using this medication. Also tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your birth control is not working well.

Medically Reviewed by a Doctor on 4/16/2014


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