To furnish direct evidence the peculiar enhancement of catecholaminergic activity in the brain in animals treated with a small dose of (−)deprenyl is unrelated to MAO inhibition, we developed while in the early '90s a loved ones of deprenyl analogues devoid of the MAO-B inhibitory result (Knoll et al Figure https://louislicum.bloggactivo.com/29748139/5-simple-statements-about-ppap-hcl-explained