These effects seem to be specific for paroxetine, since another SSRI, citalopram, does not share any of the effects exerted by paroxetine on erectile function or NO production. Acknowledgments We want to acknowledge Jose L. citalopram, significantly reduced nitrite+nitrate plasma levels by 61.4% and inhibited penile neuronal NOS (nNOS) protein expression by 31.2% after chronic…