3d image of physostigmine skeletal formula

physostigmine eserine highly toxic parasympathomimetic alkaloid reversible cholinesterase inhibitor calabar bean manchineel tree ordeal poison glaucoma delayed gastric emptying blood–brain barrier datura stramonium atropa belladonna ghb memory venom toxicant toxicity toxin toxicology poisoning danger hazard acute harmful kill exposure antidote intoxication detoxification herbal phytochemical phytotherapy plant herb natural herbalism pharmacognosy pharmacopoeia molecule molecular formula skeletal structural structure 3d