Metolazone is used to remove extra water and salt from the body. It can also help lower blood pressure. This medicine might make you need to urinate more often. It can help the other diuretics remove more water and salt when they are used with metolazone.

Common side effects:

  • Dizziness 
  • Vertigo, or feeling like you’re spinning
  • Increased thirst
  • Numbness
  • Tingling