All of the following are actions of muscarinic antagonists except
Decreases gastric secretion
prolongs AV conduction
Decreases tracheobronchial secretions
Causes contraction of radial muscle of iris
Ref:KD Tripathi pharmacology 7th edition (page.no: 114,115) Actions of Muscuranic antagonists (atropine) are CNS stimulation CVS: the prominent effect is tachycardia by decreasing the refractory period of the AV node and facilitate AV conduction. Gland; decrease sweat, salivary, tracheobronchial and lacrimatory secretion Smooth muscle: decrease tone and contraction Eye ; mydriasis by contraction of the radial muscle of iris Rise in body temperature
Autonomic nervous system