To furnish direct evidence the peculiar improvement of catecholaminergic activity during the brain in animals addressed with a small dose of (−)deprenyl is unrelated to MAO inhibition, we formulated within the early '90s a spouse and children of deprenyl analogues devoid from the MAO-B inhibitory result (Knoll et al Figure https://ppap-hcl63999.suomiblog.com/top-latest-five-ppap-hcl-urban-news-45886760