Simple Arithmetic Calculation
You need 120 capsules total to complete a regimen of three capsules taken four times daily for ten days.
Calculation Breakdown
The calculation is straightforward:
- Capsules per dose: 3 capsules
- Doses per day: 4 times daily
- Duration: 10 days
Daily requirement: 3 capsules × 4 doses = 12 capsules per day
Total requirement: 12 capsules per day × 10 days = 120 capsules
Clinical Context
While this is a basic arithmetic question, understanding dosing frequency has important clinical implications. Research demonstrates that medication adherence decreases as dosing frequency increases 1. Studies show that four-times-daily regimens have significantly lower compliance rates (39%) compared to once-daily (87%), twice-daily (81%), or three-times-daily (77%) regimens 1.
When prescribing medications requiring four-times-daily dosing, ensure patients understand:
- The total number of capsules needed (120 in this case)
- The importance of spacing doses appropriately throughout the day
- That missing doses may compromise treatment efficacy
For a 10-day course at this frequency, dispensing the full 120 capsules upfront prevents the need for refills and potential treatment interruption.