To furnish direct evidence the peculiar enhancement of catecholaminergic action within the brain in animals treated with a small dose of (−)deprenyl is unrelated to MAO inhibition, we designed within the early '90s a loved ones of deprenyl analogues devoid with the MAO-B inhibitory effect (Knoll et al copyright - https://ppaphcl92110.blogofoto.com/61436088/5-essential-elements-for-ppap-hcl