<prompt> Gynaecomastia is caused by :SpironolactoneRifampicinThiazidePropranolol  <response>: Ans. is a spironolactone Drugs causing gynecomastiaCalcium channel antagonistClomipheneDigitalisEstrogensEthionamideGriseofulvinIsoniazidPhenytoinMethyldopaSpironolactoneTestosteroneKetoconazoleReserpine 