Table 1.

Inhibition constants (K_I) for four inhibitors with BChE and binding site competition ratios (K₁₂/K₁) for each inhibitor in the presence of decamethonium. A K₁₂/K₁ ratio >> 1 denotes competition at the same binding site.

Compound	KI (µM)	K12/K1
Decamethonium	4.5 ± 0.2	-
Propidium	0.43 ± 0.06 a	118
Thioflavin-T	0.8 ± 0.1 a	>200
Edrophonium	49 ± 3 a	>200

^a updated from data in reference [23].