TABLE 2

Inhibition of cholinesterase activity in rat brain membranes

AChEI IC50 (n = 3)
nM
Galantamine 346.1 ± 73.9
Physostigmine 73.7 ± 23.3
Rivastigmine 43.4 ± 14.9
Donepezil 14.5 ± 2.3