Underground companies are putting them out, so yes. But, they are tricky to make and usually cause the user a lot of soreness. Plus, you still have to do twice a day injections if you want to keep your blood levels up, so that's why I think most stick with orals.
Thanks for the replys guys, I'm not too sure I would be willing to inject twice a day when popping a pill is so much easer, it's something you can do anywhere at anytime