The NPDUIS Database includes claims accepted by public drug programs, either for reimbursement or toward a deductible. Claims are included regardless of whether or not the patient actually used the drugs.
The NPDUIS Database does not include information regarding prescriptions that were written but never dispensed, prescriptions that were dispensed but for which the associated drug costs were not submitted to or not accepted by the public drug programs, or diagnoses or conditions for which prescriptions were written.
The NPDUIS Database contains claims data from public drug programs in Alberta, Saskatchewan, Manitoba, Ontario, New Brunswick, Nova Scotia and Prince Edward Island. The First Nations and Inuit Health Branch (FNIHB), a federal drug program, also submits data, which comes from all Canadian provinces and territories (including those not listed above).