Prescription Requirements, Dispensing, and Labeling
What makes a prescription valid
A valid prescription must be issued by a practitioner acting in the usual course of professional practice with a valid practitioner-patient relationship. Required elements generally include patient name, drug name, strength, dosage form, quantity, directions, date, and prescriber signature (or authorized electronic signature). Arkansas adds requirements for certain drugs and for controlled substances.
Concepts to master
- Oral and electronic prescriptions: permitted for many drugs but with limits; Schedule II has special rules (federal law permits emergency oral Schedule II with a written follow-up within seven days; electronic prescribing rules apply).
- Refills and transfers: know refill limits and the conditions for transferring prescriptions between pharmacies.
- Generic substitution: Arkansas permits substitution of therapeutically equivalent generics unless the prescriber indicates otherwise; patient notification rules apply.
- Labeling: required label elements include pharmacy name and address, prescription number, date, patient name, directions, prescriber, and cautions. Auxiliary labels and counseling are part of the dispensing standard.
- Dispensing errors and recalls: know the duty to correct, document, and notify.
Traps
Questions test missing elements on a prescription and whether a pharmacist may clarify versus must refuse. Do not assume a prescriber's verbal order satisfies written-prescription requirements for controlled drugs.
Worked example
A prescriber writes a Schedule II prescription without a quantity. The pharmacist cannot fill it as written - quantity is an essential element, and the pharmacist must obtain clarification from the prescriber and document it; the pharmacist may not supply a quantity by guesswork.