To furnish immediate proof which the peculiar improvement of catecholaminergic activity from the Mind in animals addressed with a little dose of (−)deprenyl is unrelated to MAO inhibition, we made during the early '90s a household of deprenyl analogues devoid on the MAO-B inhibitory outcome (Knoll et al By PPAP, https://ppaphcl79875.thechapblog.com/29679234/an-unbiased-view-of-ppap-hcl