Hi There!
I took my glider's licence 8 years ago, when I was 18, but only flew for the first year or so... recently I had some panic/anxiety episodes which led me to taking Cipralex (same as Lexpro) a SSRI.
After feeling good for a year and a half now it's time to stop taking it... and I plan to go back flying in a few months if see I still feel ok without the drugs on me.
Anyways, I'll have to repeat my medicals and I was wondering for how long after I stop taking it will they detect SSRI substances in my urine? 
My dream eventually is going for the ATPL one of these days...but I'm thinking baby steps now... first a PPL in Florida probably (which is cheaper than here in Europe) and then If I'm cool with it, go for the comercial
Many thanks for your answers!
Best Regards,
MrOnigiri