"Sexual side effects are also common with SSRIs, such as loss of
sexual drive,
failure to reach orgasm, and
erectile dysfunction. Although usually reversible, these sexual side-effects can, in rare cases, continue after the drug has been completely withdrawn.
In a study of 1022 outpatients, overall sexual dysfunction with all antidepressants averaged 59.1% with SSRI values between 57% and 73%, mirtazapine 24%, nefazodone 8%, amineptine 7% and moclobemide 4%.
Moclobemide, a selective reversible MAO-A inhibitor, does not cause sexual dysfunction, and can actually lead to an improvement in all aspects of sexual function"
From wikipedia