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It's very possible it is this:
https://www.youtube.com/watch?v=HBOPFWmZCdM
Just in case the site blocks You Tube links (I'm not sure why it would), the title of the video is 'albert hofmann 1943 - a bicycle trip (2009)'
I'm sorry for not getting to you sooner. It look similar. There are a few differences from what I remember. I might misrememberings. I'll give this bit more before I declare it solved, just in case.
It was on the Science Channel or History Channel, and the whole show wasn't animated, which is why I categorized it the way I did.
The animation looked like early CGI, kind of the Money for Nothing music video, only less cartoony.
I remember he was ride a bike and basically going to hell as recent of testing the drug.