To furnish direct evidence which the peculiar enhancement of catecholaminergic action in the brain in animals addressed with a small dose of (−)deprenyl is unrelated to MAO inhibition, we formulated inside the early '90s a spouse and children of deprenyl analogues devoid on the MAO-B inhibitory outcome (Knoll et al https://ppap-hcl23210.dreamyblogs.com/30609062/not-known-factual-statements-about-ppap-hcl