Its really common anymore. In fact
its use has doubled since 1996...now its roughly 10% of the population. And those numbers are for 2005, I'm sure its increased even more now.
Pharmaceutical companies have been pushing their anti-depressant and anti-anxiety drugs really hard for the last 10 years...just look at all the commercials. When I was taking Prozac in 1993, I kept it to myself, now telling someone you are on an anti-depressant is hardly a big deal.