To furnish direct evidence which the peculiar enhancement of catecholaminergic action while in the brain in animals dealt with with a little dose of (−)deprenyl is unrelated to MAO inhibition, we designed in the early '90s a relatives of deprenyl analogues devoid on the MAO-B inhibitory outcome (Knoll et al https://ricardogcvne.blogsvirals.com/29674863/an-unbiased-view-of-ppap-hcl