
➰Gynecomastia
🤹Deep Clinical Insight:-
🌀Spironolactone is a potassium-sparing diuretic and mineralocorticoid receptor antagonist (MRA).
🤹Its most specific side effect is gynecomastia due to anti-androgenic activity:
🌀Blocks androgen receptors
🌀 Inhibits testosterone synthesis
🌀 Increases peripheral conversion of testosterone → estrogen
🤹Result: Breast tissue enlargement in males
🤹Why others are wrong?
🪬A. Hypokalemia → opposite (causes hyperkalemia)
🪬C. Dry cough → seen with ACE inhibitors (e.g., Enalapril)
🪬D. Bradycardia → typical of beta-blockers, not spironolactone
🤹Clinical Pearl:-
🌀If gynecomastia is problematic → switch to
🌀Eplerenone (more selective, minimal anti-androgen effect)
🤹Mnemonic:-
🌀“Spironolactone → ‘SpironolactONE = One hormone imbalance → Estrogen ↑ → Gynecomastia’”
#MedEd #Pharmacology #MRAs #KriMeeraHC
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