From: [lamon t g] at [u.washington.edu] (Lamont Granquist)
Newsgroups: alt.drugs,alt.coffee,alt.drugs.caffeine
Subject: Re: Caffeine Inhibitors????
Date: 10 May 1994 05:32:50 GMT

[r--s--y] at [ucsd.edu] (Ron Risley) writes:
>Caffeine exerts its effect largely by inhibiting an intracellular enzyme
>called phosphodiesterase (PDE).

If i recall the discussion that the latest edition of G&G has on caffiene
correctly, i believe that this theory has been displaced by the notion that
caffiene and other methyl xanthines exert their behavioral effects via being
adenosine antagonists.

-- 
Lamont Granquist ([lamon t g] at [u.washington.edu])
"And then the alien anthropologists - Admitted they were still perplexed - But
on eliminating every other reason - For our sad demise - They logged the only
explanation left - This species has amused itself to death" -- Roger Waters