You aren't alone. I was at Walgreens today picking up my Rx for the generic Oxycontin and was told by the pharmacist that the manufacturer of the formulary took the generic manufacturers to court in an attempt to stop them from making the generic, and they not only won, but were able to extend their control for a few more years. My co-pay will now go from $6/month to $600/month.
I was told that there are still some pharmacies that have supplies, and the manufacturers. do have a little bit of time and stock left to ship out, but when they are gone, there will be no more. Check with your local Walgreens or CVS in your area, they will tell you over the phone if they have it in stock, and get it filled locally until they run out. In the meantime, I'm going to do some research on the internet and see what else I can find.
Good Luck!