All the antidepressants generally while the Ssris specially have an effect on Cns which in turn brings libido decline, less sensation and the most observed side effect is ejaculatory delay.As all the drugs have an interaction with body metabolism and so are Ssris, particularly react with Cns-metabolism and in turn Cns effect less or large all the body systems e.g bowel system but all these effects will be observed from 15-25 days and after that all the systems will be normal.
A lot of them have decreased libido, which in my case, is pretty much long-term. Some, Paxil in particular, will cause nasty sexual side effects for men. inbox me if u have more questions.