Edrophonium

mech: increast Ach by blocking cholinesterase

usage: short acting to diagnose Myasthenia Gravis ( Antibody blocks Ach receptor)

mnemonic: all it takes is a DROP to know if you have got MG


Physostigmine

mech: increase Ach by blocking cholinesterase

usage: glaucoma (cx BBB to CNS) and atropine (pupil dilation) counteraction

mnemoic: it STIGs your eyes (PHYS)