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What is Which analgesic is not used in Acute myocardial infarction - and explain in detail?
Ans. is 'b' i.e., Pentazocine Its use is associated with tachycardia & rise in BP is due to sympathetic stimulation. This increases cardiac work and hence is better avoided in coronary ischemia and myocardial infarction. Note - Petnidine also causes tachycardia (anticholinergic action) --> contraindicated in MI.