Another future flop in the pharmaceutical marketplace is this version of the male birth control concept. I wrote it 10 and a half years ago, and it remains true. Normal guys won't take hormonal birth control.
Men aren't going to do this to themselves . For example, from the article:
School of Management sophomore Matt Mintz said men should think contraception is their responsibility, but said current methods are effective enough without extra medication.
Only women are crazy enough to pump their bodies full of hormones, when there's no disease to treat.

This product being developed in Sydney, Australia contains testosterone and progestin, so there's no good reason to expect that with long term use of this product, normal fertility would return. It doesn't matter what the developer claims. We've been there, done that. Forget it.

Just another memory from the prediction department...... one of my pharmacy professors bet me that there would be an effective vaccine for HIV in 5 years. I told him it would be decades or never, because the virus changes rapidly (even in the same host). That bet was in 1988... Follow the Pharmer ;-)