It is still in the study phase, so no way that it has hit the black market....
http://www.medicalnewstoday.com/articles/21213.php
But if it works, it will be more convenient to ppl that use it, b/c, let' face it injecting is an obstacle... ppl see you 'shooting up' or carrying syringes and they assume all sorts of sh*t and none of it is good..