To furnish immediate evidence the peculiar improvement of catecholaminergic activity in the brain in animals addressed with a small dose of (−)deprenyl is unrelated to MAO inhibition, we formulated within the early '90s a spouse and children of deprenyl analogues devoid in the MAO-B inhibitory outcome (Knoll et al PPAP https://ricardogcvne.blogsvirals.com/29674863/an-unbiased-view-of-ppap-hcl