A prescription calls for 106 tablets of Sertraline with directions to 'Take 1 tablet by mouth daily for 3 weeks, then increase to 2 tablets daily.' What is the days supply?

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Multiple Choice

A prescription calls for 106 tablets of Sertraline with directions to 'Take 1 tablet by mouth daily for 3 weeks, then increase to 2 tablets daily.' What is the days supply?

Days supply is determined by applying the dosing schedule to the total quantity. First period: 1 tablet each day for 3 weeks equals 21 days, using 21 tablets. Remaining tablets: 106 − 21 = 85 tablets. Second period: at 2 tablets per day, 85 tablets last 85 ÷ 2 = 42.5 days. Total days supply: 21 + 42.5 = 63.5 days. So, the prescription covers 63.5 days. The half-day reflects the remaining single tablet when the second-phase dose is 2 per day.

Days supply is determined by applying the dosing schedule to the total quantity.

First period: 1 tablet each day for 3 weeks equals 21 days, using 21 tablets.

Remaining tablets: 106 − 21 = 85 tablets.

Second period: at 2 tablets per day, 85 tablets last 85 ÷ 2 = 42.5 days.

Total days supply: 21 + 42.5 = 63.5 days.

So, the prescription covers 63.5 days. The half-day reflects the remaining single tablet when the second-phase dose is 2 per day.

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