Scheduled drugs are rated from I to V. These are drugs like Ritalin, oxycodone, methadone.
Schedule I are drugs that are only able to be used in research. PCP, heroin, LSD, marijuana.
If your neighborhood doctor has a DEA license it is II-V only.
That's why there is no such thing as "prescription medical marijuana".
You can obtain a "recommendation" from a doctor, but the patient must then find a "legal" dispensary.
If a doctor wrote a Rx for MJ, he'd be breaking Federal law.
With legal pot in CA and WA, this is a moot point.
BUT, they require special prescription paper. They cannot be phoned in or faxed.
Needs to be a hard copy.