Physician assistants shall practice medicine only with physician supervision. Physician assistants may perform those duties and responsibilities as delegated in the physician-physician assistant delegation agreement and delegation forms maintained at the address of record by the supervising physician and physician assistant, including the prescribing, administering, and dispensing of drugs, controlled substances, and medical devices, excluding anesthetics, other than local anesthetics, injected in connection with an operating room procedure, inhaled anesthesia and spinal anesthesia. see full law