From mercury injections in early syphilis and heart failure patients to the discovery of carbonic anhydrase and the rise of sulfa drugs, we follow how physicians first learned to manipulate fluid balance. We also explore the development of acetazolamide and the eventual breakthrough of thiazide diuretics—revealing how observation and experimentation reshaped the treatment of heart failure and high blood pressure.

Chapters

(00:01:18) - What are diuretics?(00:02:28) - Mercury for congenital syphilis & surprise diuresis(00:08:46) - Mercury’s problems & the need for safer diuretics(00:10:26) - Sulfa drugs & penicillin’s first patient(00:12:24) - Sulfanilamide, acidosis, and the first kidney clues(00:15:01) - Discovery of carbonic anhydrase and its significance(00:17:36) - Designing better carbonic anhydrase inhibitors (Acetazolamide)(00:19:55) - Chlorthiazide and the thiazide era(00:21:26) - Wrap-up

Episode ID: 1000745068654

GUID: https://permalink.castos.com/podcast/66209/episode/2322420

Release Date: 13/01/2026, 05:46:00