<prompt> BETA-blockers are used in all, EXCEPTHypertensionThyrotoxicosisVariant anginaAll of the above  <response>: Ans. is c i.e., Variant angina Ref: K.D.T. 5the page 127We all know that attacks of variant angina occur due to coronary vasospasm.So, the drugs which relieve coronary vasospasms will used in variant angina C.C.B.S, Nitrates b blockers are contraindicated in these patients because b blockers, instead of dilating the coronary arteries constrict the coronary arteries due to unopposed a mediated constriction.Remember, b blockers are useful in classical angina. They cause favourable redistribution of bloodUses of b blocker: -HypertensionCardiac arrhythmiasMyocardial infarctionEssential tremorCHFGlaucomaDissecting aneurysmHOCMPheochromocytomaThyrotoxicosisAngina pectoris classicalMigraineAnxiety 