That's weird. He should definitely warn you about drug side effects. I always wonder if there's someone we can report crappy doctors to? Besides kudzu.com, I mean. Because that sounds kind of dangerous.
Every time I pick up my sertraline (zoloft) from the pharmacy, it always has a paper attached listing possible side effects, as well as specifying which ones you should immediately talk to your doctor about. (And there's "counseling" from the pharmacist, which is just him talking about the side effects and explaining that it's very important to take correctly, etc. They make me sign a thing saying I was offered counseling. Every time.)