To furnish immediate proof the peculiar improvement of catecholaminergic action within the brain in animals treated with a small dose of (−)deprenyl is unrelated to MAO inhibition, we made while in the early '90s a loved ones of deprenyl analogues devoid of the MAO-B inhibitory result (Knoll et al copyright https://ppaphcl30011.theobloggers.com/36376183/the-best-side-of-ppap-hcl