In the Cephalexin prescription example, how many capsules are prescribed in total?

In the Cephalexin prescription example, how many capsules are prescribed in total?

• A. 60 capsules
• B. 30 capsules
• C. 40 capsules
• D. 50 capsules

Answer: (B)

Dosing math hinges on how many doses you take per day and for how many days. If cephalexin is given as one capsule every 8 hours for 10 days, that’s 3 doses per day (24 hours ÷ 8 hours = 3). Over 10 days, total doses = 3 × 10 = 30 capsules. So the prescription totals 30 capsules. If the schedule or capsule count per dose were different, the total would change accordingly (for example, 2 capsules per dose or a different interval would produce a different total).

Dosing math hinges on how many doses you take per day and for how many days. If cephalexin is given as one capsule every 8 hours for 10 days, that’s 3 doses per day (24 hours ÷ 8 hours = 3). Over 10 days, total doses = 3 × 10 = 30 capsules. So the prescription totals 30 capsules. If the schedule or capsule count per dose were different, the total would change accordingly (for example, 2 capsules per dose or a different interval would produce a different total).