St. Petersburg Medical Marijuana Doctor | Access Marijuana RX, Access Marijuana RX (AMRX) offers comprehensive evaluations and recommendations for medical marijuana to qualifying patients in Florida. We put your health, safety and comfort first. By working at the forefront of the medical marijuana movement in Florida, we realize the responsibility we have to provide superior service with integrity and compassion. We are committed to educating both our patients and our community about the safe, palliative and therapeutic benefits of medical marijuana. In add.