hey all! pike here, and seeing as the last thread mentioning a pde4i is quite old, thought i'd make a new one.
the only one that i'm aware is commercially available to the public is mesembrine, the chief alkaloid of Kanna (sceletium tortuosum). all the other one's i've heard of thus far are research chemicals.
anyone have any experience with the other PDE4-inhibitors, or perhaps you'd like to share your Kanna experiences, PLEASE post. i'd be very much interested in hearing if other people responded to Kanna as well as i did.