Wanted to lay this one out clearly because it's a 24% domain question type that shows up in multiple forms.

A valid prescription under federal law needs the prescriber's name and address, DEA number if it's a controlled substance, patient name, drug name and strength, quantity, directions for use, and the date it was written. That's the minimum federal floor, and state law can only add to it, never remove anything.

The piece that costs people points is the Schedule II emergency exception. Oral prescriptions for Schedule II drugs are allowed, but only in genuine emergencies, and the prescriber is still required to send a written prescription within 7 days. This isn't a permanent workaround, it's a narrow exception with a tight follow-up requirement.

The other thing worth drilling: if any required element is missing from a controlled substance prescription, the correct answer is to contact the prescriber before dispensing, not fill it and add a note to the file. The exam specifically tests whether you know that distinction.

More pharmacy law practice at [pharmacyexam.com](http://pharmacyexam.com) if you want scenario-based questions on prescription validity.

  
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The MPJE asks about prescription validity a lot, and the Schedule II oral exception is where people consistently mess up