A book of collected short stories by Terry Southern. It includes the story Blood of the Whig, about using concentrated pituitary from schizophrenics as a drug. William S. Burroughs called it the funniest thing he has ever read.
The title story, "Red Dirt Marijuana", is the most lucid take on the us vs. them policy of the drug war. It perfectly states why "they" don't want "you" to use it, "cuz it lets you see through the bullshit."