Classes of cholinergic agonists Direct-acting Indirect-acting Receptor agonists Cholinesterase inhibitors Carbamates Choline esters PHYSOSTIGMINE Phosphates NEOSTIGMINE ISOFLUROPHATE ACETYLCHOLINE Alkaloids PYRIDOSTIGMINE Antidote BETHANECOL PILOCARPINE EDROPHONIUM PRALIDOXIMINEClasses of cholinergic agonists Direct-acting Receptor agonists Choline esters ACETYLCHOLINE BETHANECOL Alkaloids PILOCARPINE Cholinesterase inhibitors Carbamates PHYSOSTIGMINE NEOSTIGMINE PYRIDOSTIGMINE EDROPHONIUM Phosphates ISOFLUROPHATE Antidote PRALIDOXIMINE Indirect-acting