Charles Bukowski - American author

A few short stories where he mentions taking pills. And I can think of two where he discusses coke. Seems like a man like Bukowski wouldn't go for the coke. No reason to say that, but I think with his fondness for the alky, the coke wouldn't get him where he liked to be. And probably would prefer pills that would mellow you out. And who is the rockstar of 1970, living off royalties that visited Buk and turned him on to coke?