If i am on zoloft (sertraline) and neurontin, and i have absolutely no sexual desire, and no ability to get erection, is it possible that it's ruined forever?

Tell your doctor: Its important to share this information with the person who write the meds and the therapist. Sometimes you just need to tweak the dose a bit,. sometimes you need to make a complete change in medication. Sometimes you need to look at some medical issues that may contribute. At 27 you will likely get this sorted out right away then have the problem pop up (or not pop up) again later. Fix it again..

I doubt .....: ... that your sexual desire and functioning will be ruined forever if it was normal prior to taking these meds. Talk to your dr about what you are experiencing, and ask about changing your meds.