Before taking it, 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. The drug may also be excreted in human milk, causing health complications in infants. Consult your doctore before breast-feeding. Please consult your doctor when taking this medicine if you are pregnant. Clopidogrel, gemfibrozil, trimethoprim, azole antifungals (such as itraconazole), macrolide antibiotics (such as erythromycin), rifamycins (such as rifabutin), St. John’s wort, among others and insulin.