You should not use this medicine if you have ever had an allergic reaction to ethacrynic acid. Do not use this medicine if you are not passing any urine. You should not use this medicine if you have had severe, watery diarrhea caused by ethacrynic acid in the past.
Your doctor will tell you how much of this medicine to use and how often. Your dose may need to be changed several times in order to find out what works best for you. Do not use more medicine or use it more often than your doctor tells you to.
Drink extra fluids so you will pass more urine while you are using this medicine. This will keep your kidneys working well and help prevent kidney problems.
If a dose is missed:
If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
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 using lithium, or a heart medicine called digoxin, Lanoxin®, or Digitek®. Tell your doctor if you are using certain antibiotics, such as Ceclor®, Keflex®, Amidin®, or Garamycin®, or steroids, such as dexamethasone, prednisolone, prednisone, or Medrol®.
Tell your doctor if you are using medicine to lower blood pressure. Some blood pressure medicines are atenolol, hydrochlorothiazide (HCTZ), lisinopril, metoprolol, quinapril, Accupril®, Cozaar®, Diovan®, Lotrel®, Norvasc®, Toprol®, or Zestril®. The amount of blood pressure medicine that you are taking may need to be changed.
Tell your doctor if you are using a blood thinner such as warfarin (Coumadin®). The amount of blood thinning medicine that you are taking may need to be changed. You should also tell your doctor if you are taking pain or arthritis medicine, such as aspirin, ibuprofen, Advil®, Aleve®, or Celebrex®.