<prompt> b -blockers are used in all except?HypeensionThyrotoxicosisVariant anginaAll of the above  <response>: Ans. is c i.e., Variant angina We all know that attacks of variant angina occur due to coronary vasospasm. So, the drugs which relieve coronary vasospasms will be used in variant angina C.C.B.s, Nitrates b blockers are contraindicated in these patients because 13 blockers, instead of dilating the coronary aeries constrict the coronary aeries due to unopposed a mediated constriction. Remember, blockers are useful in classical angina. They cause ourable redistribution of blood 