Spironolactone Rx

$0.17 per tablet
  • Usually ships within one business day with veterinary approval.

  • Requires veterinary authorization.

  • Your pet's veterinarian will provide directions for use.

Spironolactone (Generic) Tablets: Diuretic for Dogs and Cats

Spironolactone is a medication often used as a diuretic or for treatment of heart failure. Spironolactone helps the body to retain the potassium that is sometimes lost in large amounts when using other diuretics. Because it helps the body retain potassium, it is contraindicated in pets that have hyperkalemia, or too much potassium in the blood. It is also not recommended in pets that have Addison’s disease, acute renal failure, or significant renal impairment. Spironolactone is most often used in combination with another diuretic, such as furosemide or hydrochlorothiazide.

Possible Adverse Effects

  • hyperkalemia
  • hypernatremia (excess sodium in the blood)
  • dehydration
  • vomiting
  • anorexia
  • tiredness
  • facial itching or rash in cats
  • It is important to call your pet's veterinarian if vomiting, anorexia, and tiredness are severe or continue.

If you miss giving your pet the dose, give it to your pet as soon as you remember. If it is close to the next dose, skip the missed dose and continue on your normal schedule. If you are unsure about when to give a missed dose, contact your pet's veterinarian.