Has anyone ever tried 5-HTP? It's available at Whole Foods/Wild Oats/GNC, etc. I hear that it's a natural source of seratonin, which, as I understand, is quite instrumental in treating OCD...

...give it a shot...what have you to lose except your money? A short trial should give you an answer. Unless, of course, you need to be on it for many weeks at high cost, for it to be "effective".