I Am A Post Prostate Surgery Man--cryosurgery Four Years Ago.

I am a post prostate surgery man--cryosurgery four years ago. Unexpectedly I am able to have erections without drug or other assistance but the pleasure of orgasm is difficult to reach. Lately I've heard the oxytocin taken under the tongue or as a nasal spray can greatly assist men in reaching orgasm. Any information on oxytocin use and availability would be helpful as it is not yet on any drug formularies that I am aware of.----------