You should not receive this medicine if you have had an allergic reaction to sodium nitroprusside. You should not receive this medicine if you have certain medical conditions. Your doctor will determine if this medicine is right for you.
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 medicine to lower blood pressure such as atenolol, lisinopril, metoprolol, quinapril, Accupuril®, Cozaar®, Diovan®, Lotrel®, Norvasc®, Toprol®, or Zestril®. Tell your doctor if you are using any heart medicines.
Make sure your doctor knows if you are receiving any medicines for anesthesia.