I would strongly urge you to reconsider your idea about SSRI’s as a cure for premature ejaculation.
Unless you suffer from chronic depression (the key word being ‘chronic’) it is extremely unwise to fool with your brain chemistry in this way, for this purpose.
There are many other approaches to take.
SSRI’s do, in some cases, make ejaculation difficult. Your best case scenario would be swapping premature ejaculation for the opposite: difficulty ejaculating. That’s no fun either. Additionally, the potential side-effects from Zoloft, Prozac, etc. for someone who doesn’t need them for their stated purpose, are considerable.
I would first look into the solutions proffered by other kinds of literature to see if you can’t retrain your body. Mostly premature ejaculation is about not understanding the relationship between stimulus and different levels of arousal. There are books that deal with this. The Mult-Orgasmic Man (to name just one) has a chapter and a whole set of systematic exercises that can be done which will help to re-condition your sexual responses and allow you to tune in to your body better and gain the control you seek. That’s a much better way to go.
Should this approach fail, look to hypnotism, or even acupuncture before you start turning your brain inside out with these drugs.
The idea that every problem can be solved with a pill is just crap, and some of these pills - in addition to making drug companies rich on your nickel - deliver a lot more than you’d wish you bargained for.
Before: I'd like to show you something I'm very proud of, but you'll have to move real close.
After: I\'d like to show you something I\'m very proud of, but you guys in the front row will have to stand back.
God gave men both a penis and a brain, but unfortunately not enough blood supply to run both at the same time. - Robin Williams (: