They have to be very careful about what they say in public, because they are trying to get FDA approval, and the FDA is (for good reason) twitchy about medical

They have to be very careful about what they say in public, because they are trying to get FDA approval, and the FDA is (for good reason) twitchy about medical product manufacturers saying things that haven't been proven out through a strict testing process. Right now, since they have a limited budget, they're just focusing on doing the studies they need to do to get approval for marketing it as a non-reversible contraceptive. Getting approval to market it as being reversible will come later. IIRC, all of this is explained on their website, possibly in the FAQ. Edit: Yeah, more or less. From the FAQ -- "The idea is to develop a fully reversible long-acting male contraceptive, and recently-completed rabbit studies showed rapid restoration of sperm flow. This was accomplished by flushing the Vasalgel from the vas deferens with an injection of sodium bicarbonate (baking soda) solution. Additional reversibility studies must be completed before Vasalgel can be marketed as a reversible male contraceptive."