Metolazone (Zaroxolyn) is used to treat high blood pressure, edema in patients with congestive heart failure, nephrotic syndrome, and patients with kidney dysfunction.

This medication is available as a tablet or your pharmacist may be able to make a liquid.

  • Give this medication only as directed, and do not stop unless directed to stop by your child's doctor. 
  • Make sure your child's doctor knows if your child has diabetes before giving this medication.
  • Talk with your doctor or pharmacist before giving any other prescription drug or over-the-counter (OTC) drug.  
  • Take this medicine during the day to help prevent having to get up at night to urinate.
  • Avoid excessive exposure to the sun, and when outdoors apply sunscreen (SPF 15 or greater).
  • Take this medicine with food if it upsets your child’s stomach. 
  • Do not use after the expiration date on the bottle / package.
  • Keep this medication out of the reach of children.  
  • If too much medication is taken by accident, call the Drug and Poison Information Center (DPIC), 513-636-5111 or 1-900-222-1212, or call your child's doctor immediately.

For any questions about your child's dosing schedule and/or missed doses, contact the healthcare provider who prescribed the medication.

  • Dry mouth  
  • Increased thirst  
  • Dizziness  
  • Nausea or vomiting
  • Rash  
  • Excessive urine
  • Irregular heartbeat 
  • Severe nausea or vomiting
  • Severe dizziness or passing out 

Last Updated 11/2013