Prescription data iscollected centrally by ISDScotland which is a business operating unit of NHS NationalServices ScotlandThe Prescribing Team within ISDmaintains a detailed database of all NHS prescriptions dispensed in the communityin Scotland. The information is supplied to ISD by Practitioner ServicesDivision (PSD) who are responsible for the processing and pricing of all prescriptionsdispensed in Scotland.These data are augmented withinformation on prescriptions written in Scotland that were dispensed elsewhere in the United Kingdom.All these prescriptions are dispensed by community pharmacies, dispensing doctorsand a small number of specialist appliance suppliers.