Which medications in the drug class Carbonic Anhydrase Inhibitors are used in the treatment of Metabolic Alkalosis?

Updated: Dec 10, 2020
  • Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Carbonic Anhydrase Inhibitors

Diuretics may be used to treat severe metabolic alkalosis in edematous states (eg, from congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), or right heart failure).

Acetazolamide (Diamox)

This agent inhibits carbonic anhydrase, the enzyme that catalyzes the hydration of CO2 and dehydration of carbonic acid. Inhibition reduces reabsorption of NaHCO3 in the proximal tubule, leading to natriuresis, bicarbonate, diuresis, and a decreased serum bicarbonate level. As NaHCO3 delivery to the collecting duct increases, potassium secretion enhances, resulting in hypokalemia.

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