I don't think it would mess up post cycle therapy (pct), nor have a synergistic effect with hpta suppression. In other words it would be an added effect, not a multiplied effect. It would however, be another variable to troubleshoot if you are having problems.
Antidepressants do this because of the direct action on serotonin receptors, I do not believe this is directly effected with hpta suppression.
I have looked for information with regards to this but came up empty. I had some issues with cymbalta and decided to just drop it, gradually of course. Feels like you have the flu for a while when you come off it. The only anti-depressant that is shown not to have
sexual side effects that I know of is buproprion (Wellbutrin, Applenzin). I use Applenzin with no side effects and stay on the lowest dose possible.
Anyone with info on this topic feel free to pm me as I am quite interested in this topic for several reasons.