Hello. I'm happy to see that you're prioritising your mental health. While it is possible that the sexual problems you're experiencing are a side effect of nexito, it's not permanent and usually is reversible on stopping the medication.
Next Steps
I suggest that you consult a good psychiatrist/sexologist who can gradually taper the dose of nexito if you're doing well or shift you on to an alternative anti-anxiety medication if necessary.
Health Tips
Please avoid suddenly stopping the medicine and make any changes only under the supervision of your psychiatrist.