<prompt> The main mechanism of hyperpyrexia induced by atropine is?Vasodilationinhibition of sweatingThrough central actionsIncrease in basal metabolic rate  <response>: Ref:KD Tripathi pharmacology 7th edition page.no: 115 Rise in body temperature by Atropine occurs at higher doses. It is due to both inhibition of sweating as well as stimulation of temperature regulating centre in the hypothalamus. 