Dose-slot pill count (Morning · Afternoon · Evening · Night). Adherent = 80–120%.
Afternoon visit → usually “Up to Morning”. Supply days apply to all drugs. Supply date fills every drug; change it on a drug only if that drug was supplied on a different date.
Expected = tabs in every dose slot from first dose from new supply up to doses due by visit.
Adherence % = (Dispensed + Prev. balance − Remaining) ÷ Expected × 100 · Dispensed = tabs/day × supply days · PRN drugs are not counted.
DFIT % = (Total − Wrong) ÷ Total × 100 · ≥80% = good understanding