CMP Pharma

CMP Pharma

P.O. Box 147 Farmville North Carolina, 27828 United States




The first and only FDA-approved oral suspension of spironolactone, providing a stable, ready to use, and consistent liquid for adult patients who have difficulty swallowing, or who cannot swallow, tablets.

What is CaroSpir?

CaroSpir is the first and only FDA-approved oral suspension of spironolactone that provides a stable, ready to use, and consistent liquid treatment option for adult patients who have difficulty swallowing, or who cannot swallow tablets, and are suffering from heart failure, edema caused by heart failure and cirrhosis, and hypertension.CaroSpir addresses the complexities and inconsistencies of crushing/compounding by providing patients with an FDA-approved oral liquid suspension of spironolactone. It eliminates the need for additional preparation by a pharmacist or patient and it does not have special storage requirements.

Important Safety Information

Indications And Usage

CAROSPIR is an antagonist of aldosterone indicated for:

  • the treatment of NYHA Class III-IV heart failure and reduced ejection fraction to increase survival, manage edema, and to reduce the need for hospitalization for heart failure
  • use as an add-on therapy for the treatment of hypertension, to lower blood pressure in adult patients. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions
  • the management of edema in adult cirrhotic patients when edema is not responsive to fluid and sodium restrictions


CAROSPIR is contraindicated for patients with the following conditions:

  • Hyperkalemia
  • Addison’s disease
  • Concomitant use of eplerenone

Warnings And Precautions/Adverse Reactions

CAROSPIR may cause the following conditions.

  • Hyperkalemia
  • Hypotension and Worsening Renal Function
  • Electrolyte and Metabolic Abnormalities
  • Gynecomastia
  • Impaired neurological function/ coma in patients with hepatic impairment, cirrhosis and ascites

The most common adverse reaction (incidence > 5%) with CAROSPIR treatment is the increased occurrence of gynecomastia in men.


CAROSPIR oral suspension, 25 mg/5 mL, is not therapeutically equivalent to tablet forms of spironolactone. Follow dosing instructions for CAROSPIR. In patients requiring a dose greater than 100 mg, use another formulation of spironolactone. Doses of CAROSPIR suspension greater than 100 mg may result in spironolactone concentrations higher than expected.

Drug Interactions

  • Agents increasing serum potassium: Concomitant administration can lead to hyperkalemia.
  • Lithium: Increased risk of lithium toxicity.
  • NSAIDs: May reduce the diuretic, natriuretic and antihypertensive effect of CAROSPIR.
  • Digoxin: CAROSPIR can interfere with radioimmunologic assays of digoxin. Spironolactone and its metabolites increase the apparent exposure to digoxin.
  • Cholestyramine: Hyperkalemic metabolic acidosis has been reported with concomitant use.
  • Acetylsalicylic Acid (ASA): ASA may reduce the efficacy of spironolactone.

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