... days; record two—100 mg/30 days, 200 mg/30 days), we summed the daily dose and divided by the number of records and summed the days-supply (e.g. 300 mg/60 days). Using these decision rules, we ... days, daily dose was summed to the maximum days-supply between the 2 prescriptions. b. If the days-supply between prescriptions was greater than 14 days, dose was considered switched to the ... on the same day, with the same days-supply and same dose, the days-supplies were summed. 3. If patient filled 2 or more prescriptions on the same day, with the same dose but different days-supply...