Pretty much all SSRI/SNRI ADs have this effect in one form or another.
Even the Tricyclic ADs list this as a possible side effect.
Mirtazapine is a different type of AD and is known for not causing sexual dysfunction, but carries the risk of weight gain if you're not disciplined with your diet as it can make you crave carbs.
The only other AD that is clinically proven not to cause significant sexual dysfunction is Bupropion, marketed under the name of Wellbutrin, however it is not available in the UK as an anti-depressant. I've tried to get this drug on more than one occasion and been denied, even by a secondary care practitioner.
It is used in the UK as a drug to help you stop smoking called Zyban, but due to its expense, has been replaced with a drug (I forget its name) that isn't helpful as an AD.
I found Citalopram killed my orgasm stone dead, where as with Fluoxetine (Prozac), whilst it took a little longer and was still a little diminished in feeling, it was still possible and a compromise I could tolerate to not have my life ruined by anxiety and depression.
It might be worth trying a different SSRI.