I wouldn't call "Junky" superior, just different. Junky takes place over a series of years whilst Fear and Loathing is just a month. Junky is somber, FAL is wacky. I remember Burroughs pondering potheads (tea heads as he calls them)... paraphrase "people don't get physically addicted, but some people can't have fun without some tea (weed)." I recommend both books.
Go Ask Alice, although I have heard it isn't a true account, it kind of kills it for me, but it still is a good paced book and has alot of druggie innuendo and stuff that I wish I could have been part of.
PIHKAL and TIHKAL are both worth a read if you like mega books.... they journal the experiences due to various substances this couple synthesized and used... also has a lot of very useful info in.... but looong... but gooood
could always "book" a hotel, get a bunch of "drugs" and read the courtesy "bible".. it would make a good story .. :_)
I find the best stories come from druggies and junkies who haven't written books. Chances are if the person got their shit together enough to write a book, they weren't a very good druggie.
I do recommend Go Ask Alice as well. Also, A Million Little Pieces. Alot by Charles Bukowski is based around alcohol, but other drugs seep into the mix. If you want to explore some Vonnegut it isn't druggie, but the format of his stories and the pace of the book and topics are very funny. 25 Years of Short Term Memory Loss was about the creating of SNL, great druggie success story.
not really a drug book, but Russell Banks talks about various drugs in his books. Rule of the Bone is my favorite
I am not sure if it is available in english, but I really enjoyed King Acid by Peter ten hoopen. It describes the very early days of LSD in Amsterdam
And Psychedelic Relic by Tim O'Connor (this one is written in english): adventures of a young hippie/rebel in 1967, hitchhiking, learning to play the guitar, consuming enormous amounts of drugs...
Nothing really beats Carlos Castaneda. The first book 'Separate Peace' is kinda boring, but you can skip that one and then the rest are great!
"The Rum Diary's" by Hunter S. Thompson, not so much a "drug book" and no were as crazy as "Fear & Loathing", but it's good. It's got the crazed adventure feel.