The key thing to remember about anti depressent medication is that it can actually take weeks to work. And so even if you're not really seeing a benefit right away, that's actually perfectly ok. People aren't abusing them because they actually are happy pills. What they really seem to do is reduce the frequency and severity of depressive episodes. So what we know is that when people start them, you'll get sort of a 30 to 50 % improvement in depression.