Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you are also using other blood pressure medicine such as atenolol, hydrochlorothiazide (HCTZ), lisinopril, quinapril, Accupril®, Cozaar®, Diovan®, Lotrel®, Norvasc®, Toprol®, or Zestril®.
Make sure your doctor knows if you are using digoxin (Lanoxin®), cimetidine, or cyclosporine (Neoral®, Sandimmune®).
Make sure your doctor knows if you are pregnant or breastfeeding. You should not breastfeed while receiving this medicine.
Make sure your doctor knows if you have angina (chest pain), heart disease, or congestive heart failure. Tell your doctor if you have liver disease, kidney disease, or pheochromocytoma (tumor of the adrenal gland). Tell your doctor if you have had a recent stroke or brain injury with severe bleeding.
Make sure your doctor or dentist who treats you knows that you are using this medicine. This medicine may cause a problem with medicine given during surgery or a procedure.