<prompt> Which of the following drug produce analogous action on dilator pupillae as is produced by pilocarpine on sphincter pupillae?EpinephrineHydroxyamphetamineCocaineTimolol  <response>: Ans. A EpinephrineRef: KDT 8the p114, 144Pilocarpine is a parasympathomimetic drug. It causes contraction of sphincter pupillae and result in miosis. Epinephrine results in contraction of dilator pupillae and result in mydriasis. 