neostigmine molecule. it ischolinesterase inhibitor for symptomatic treatment of myasthenia gravis by improving muscle

neostigmine ischolinesterase inhibitor muscle tone skeletal anesthesia nitrogen acetylcholine acetylcholinesterase gravis myasthenia neostigmin parasympathomimetic relaxant drawing flat icon hydrogen carbon oxygen organic chemistry structural formula atomic molecule structure chemical atom molecular illustration vector paper packaging drug