[weegee]

It may not have been a need for increased quantity. Maybe the doctor's prescription levels were being monitored and it could red flag him. He tells Rush that he can't continue prescribing him Oxycontin. Alternatively he may tell Rush that he is concerned about longterm problems with withdrawl from Oxycontin and is only willing to prescribe it to him for a short period (after which Rush goes to alternative avenues after finding it works better than other medications).

[ellery]

It may not have been a need for increased quantity. Maybe the doctor's prescription levels were being monitored and it could red flag him. He tells Rush that he can't continue prescribing him Oxycontin. Alternatively he may tell Rush that he is concerned about longterm problems with withdrawl from Oxycontin and is only willing to prescribe it to him for a short period (after which Rush goes to alternative avenues after finding it works better than other medications).

That's possible -- and Rush would certainly not be the first person whose only crime was needing something he could only procure illegally. The problem is that people who do this are often not treated sympathetically by the law or even by people here.