Assuming the science is as good (and safe) as it sounds, there are two issues in the way of this:
(1) It's still a (minor) surgical technique. That won't deter some folk, but it's a bigger barrier for relatively casual use than ideal.
More importantly, though:
(2) There's no big money in it for Big Pharma.
'Unlike birth control pills, which must be used daily, sometimes for years, RISUG is a long-lasting, low-cost treatment (the syringe could end up costing more than the material it injects). “Pharmaceutical companies are not interested in one-offs,” Weiss says. “They’re interested in things they can sell repeatedly, like the birth control pill or Viagra.”'
Not only does that mean a lack of interest in ponying up the millions of dollars for testing and clinical trials, but (I suspect) active hostility toward the technique.
Still, I have hope, not as something I'll be likely to use (certainly not by the time it's commercially available in the US), but for people in the near future.
RISUG has been around for quite a while. From what I gather, "Big Prophylactic" is doing its best to keep it from the american market
+Arthur Gwynne Yeah, the dates in the article go back quite some ways.
And, as I said, it's not at all surprising that the monied interests involved are trying to stall it as long as possible (no doubt playing up the "Oh, it's from India" angle as part of the play book).