Talk to Urologist on Low Timing Intercourse

i am schizophrenic patient and used epival tab twice in a day and depot injection after 15 days. i have a problem facing during intercorse which is low timing. i m patient of dr. hanif mesiya he prescribed me a medicine for sex but unfortunately i forgot my prescription. kindly advise me a medicine accordingly my issue which is no side effect and helpful for sex with wife. thanks in advance