Metolazone, is used to reduce the swelling and fluid retention caused by heart failure or kidney disease. It also is used alone or with other medications to treat high blood pressure. Metolazone is in a class of medications called diuretics ('water pills'). It causes the kidneys to reduce the amount of water and salt in the body by increasing the amount of urine.
Metolazone comes as a tablet to take by mouth. It is usually taken once a day. Take metolazone at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take metolazone exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Your doctor will probably start you on a low dose of metolazone and gradually increase your dose, depending on your response to this medication.
Metolazone controls high blood pressure but does not cure it. Continue to take metolazone even if you feel well. Do not stop taking metolazone without talking to your doctor.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Follow your doctor's directions. they may include a daily exercise program and a low-sodium or low-salt diet, potassium supplements, and increased amounts of potassium-rich foods (e.g., bananas, prunes, raisins, and orange juice) in your diet.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
joint pain or swelling
dry mouth, dark urine, decreased sweating, dry skin, and other signs of dehydration
rapid, irregular, or pounding heartbeats
blistering or peeling skin
swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs
difficulty swallowing or breathing
sore throat with fever
unusual bleeding or bruising
loss of appetite
pain in the upper right part of the stomach
yellowing of the skin or eyes
Metolazone may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from light, excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
slow or difficult breathing
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to metolazone.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking metolazone.
Learn the brand name of your medication. Do not switch brands without talking to your doctor or pharmacist, as different brands of metolazone may work differently in the body.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Last Revised - 08/15/2013
AHFS® Consumer Medication Information. © Copyright, 2015. The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.