I have been on Lexapro (called Cipralex in Canada) for about 5 years now, and have experienced all parts of the spectrum.
At first, it did make it harder to reach orgasm, but at least orgasm was still possible, which it essentially wasn't on Prozac. Nevertheless, I was annoyed enough at the difficulty reaching orgasm that I tried to reduce the dose of Lexapro to see if it would help. It didn't help -- I just got more depressed -- so I went back to the prescribed dose.
I never noticed any decrease of the quality of my orgasms due to Lexapro.
The problems, though, for me, haven't been permanent. The last year or two I have been able to come more quickly (on a consistent basis) than ever before in my life. With the right stimulation, these days, I will come in about 90 seconds or less even if I am
trying not to come yet. So Lexapro didn't cause a permanent problem for me, and I still think my quality of life (in terms of less depression) is better with than without the drug, so I continue to take it.
Interestingly enough I got put on adderall a couple months back and I have just the opposite issue (certainly not a prob). I am hornier than when I was 18, and every load has been huge -- like big towel worthy huge! That and I find I'm getting hard easier, staying hard longer, and the level of hardness is much more.
It's not listed as an actual side effect for it, but hey I am NOT complaining!
I do have ADHD, and took Adderall once for about 6 months. I noticed the same thing at 20mg of Adderall -- I was massively horny and reached orgasm easily. As an experiment, my psychiatrist raised my dose to 30mg/day, and that was a problem. I was still horny, but could no longer come unless it was really late in the day and most of the drug had worn off. So, my ex-husband and I tended to wait until late in the evening, and not bother trying to get me off during the day. Since 30mg didn't seem to be helping my ADHD any more than 20mg, I went back to the 20mg dose, and the sexual problem vanished.
Ultimately, though, I began to find that despite its positive effects, Adderall was making me excessively irritable, especially in the mornings. This eventually became enough of a problem that I had to discontinue the drug.
I thought this side effect with SSRIs was transitory..gradually reduces and vanishes. No? If not, I'd be talking to my doctor about an alternative. Some versions work better than others for people?
As I said earlier, with me, the effect with Lexapro was transitory. However, it did take several
years for the situation to improve. I suggest really investigating whether you need to be on it or not. If there is a reasonable substitute (especially if Wellbutrin works for you), then I would suggest going that route if you are having sexual problems due to an SSRI. But if you absolutely have to take the SSRI for your mental well-being, try to take some heart and know that if you are patient, it is possible for things to improve in time.