Well done dude.
I remember seeing the commercial that this parodied a while back, I'm suprised that you parodied it so well. I like how Zolaft was supposed to cure depression, but you said it can casue depression at the end. I thought the hallucination part was funny when the clown popped up, good job bro.
The animation was decently done and the narrator did a good job. The only thing I didn't like was how the circular character's sounds would interfere over what the narrator was saying, the sounds were clashing and it was unpleasant. Aside fromt aht, I throughly enjoyed this. Keep up the great work!