Ethacrynic acid is a "water pill" (diuretic) that works in your kidneys to increase the amount of urine you make. This helps your body get rid of extra water. This medication is used to decrease swelling (edema) caused by conditions such as cancer, congestive heart failure, liver disease, and kidney disease. This effect can help your kidneys work better and lessen symptoms such as trouble breathing and swelling in your ankles, feet, hands, or belly.
This medication should not be used for infants.
This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.
This drug may also be used for high blood pressure.
How to Use This Medication
Take this medication by mouth as directed by your doctor, usually once or twice a day after a meal. If you take this drug too close to bedtime, you may need to wake up to urinate. It is best to take this medication at least 4 hours before your bedtime. Consult your doctor or pharmacist if you have questions about your dosing schedule.
The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Your doctor will adjust your dose based on your medical condition, response to treatment, and lab tests (such as sodium, potassium, chloride levels). Some people may be directed to take this medication every other day or only when needed. Follow your doctor's directions carefully.
If your doctor has directed you to take this medication on a regular schedule, take it regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.
Tell your doctor if you do not get better or if you get worse.