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While psychiatry isn't my specialty, I am a medical doctor.
Below are my sources for my statements.
Article: https://www.mdedge.com/jfponline/article/78568/mens-health/how-do-antidepressants-affect-sexual-function
Relevant table:
Source data reported in that table from a meta-analysis from your Italian colleagues at University of Bologna (not a pun) https://www.ncbi.nlm.nih.gov/pubmed/19440080 (Serretti et al 2009)
Note in the Table above, fluoxetine (PROZAC) is associated with a "treatment-emergent sexual dysfunction" (SD) in 70.6% of 1,718 patients on the drug, with an odds ratio of 15.59 over the placebo (total N & exact OR reported in original article by Serretti). The definition of SD generally encompasses problems with desire, arousal and orgasm -- but you can read Serretti's full text yourself to see the exact breakdown of the variables.
My statements cautiously generalizing this fluoxetine data to possibly helping with "sexual preoccupation" comes from https://www.nice.org.uk/advice/esuom46/chapter/Key-points-from-the-evidence :
What exactly is your point of contention?