If the total daily dose is 4000 mg in two equal doses and each tablet is 0.5 g, how many tablets are required per day?

• A. 4
• B. 6
• C. 8
• D. 10

Answer: (C)

Calculating how many tablets are needed requires converting the tablet strength to the same unit as the daily dose and dividing. Each tablet is 0.5 g, which equals 500 mg. The total daily dose is 4000 mg and is given as two equal doses, so each dose is 2000 mg. How many tablets per dose? 2000 mg ÷ 500 mg per tablet = 4 tablets per dose. Since there are two doses per day, 4 tablets per dose × 2 doses = 8 tablets per day. Eight tablets are needed daily.