Dispensing of prescription medication expiration dating
If a prescription shows both of these dates, the six months starts from the later date.
This applies to medicines prescribed on the NHS and privately.
The reason for this difference in substance control is the potential scope of misuse, from drug abuse to practicing medicine without a license and without sufficient education.
Different jurisdictions have different definitions of what constitutes a prescription drug.
As a refill instruction, the pharmacist may accept a number of times, a time period, such as one year, or the Latin phrase (abbreviated prn— meaning “as needed”).A drug which is dispensed for an inpatient in a health care facility by the pharmacy of that facility may be labeled in accordance with the policy adopted by the medical or other authorized board of the facility.