Legal or not, unfortunately you can be dismissed should you use ANY medications your PMP has not prescribed or if you use anything other than X,Y or Z, that is included in your contract. Did you sign one? If so, you should have a copy.
Here is what mine says under, ILLEGAL AND NON-PRESCRIBED DRUG USE:
"I understand that the use of any controlled medication not prescribed by the undersigned physician may result in termination of care. I authorize the practice to cooperate fully with any city, state or federal law enforcement agency, including this state's Board of Pharmacy, in the investigation of any possible misuse, sale, or other diversion of controlled medicines.
I authorize the practice to provide a copy of this agreement to my pharmacy. I agree to waive any applicable privilege or right of privacy or confidentiality with respect to the authorizations. I also understand that the use of any illegal substance, including MARIJUANA, may result in termination of care."
Oh, and in case you might be thinking of asking that the drug test be put off, here is what my contract says under, DRUG SCREENING:
"I will participate in drug screening as a part of my treatment plan. I understand that drug screening may be conducted at least every 12 months and may be required more frequently at the discretion of the undersigned physician.
Screening may include urinalysis, blood testing or pill count. I agree to pay all costs associated with drug testing not covered by my insurance.
Refusal to submit to screening at the time specified may result in termination of services."