This method was on my current work-drive podcast, No Such Thing As A Fish. It basically worked for one guy, the person running the study, and then he found he rendered himself sterile. No one else has managed to have it work reliably.
You know, there’s already several very easy male contraceptives. Use a condom, or if that is too hard, get snipped. Best decision I ever made and ensured that my wife and I would have exactly the number of children we wanted without anyone having to remember to take any drugs. Considering I did it over 20 years ago, I’m sure its easier, faster, and safer now.
