If a dose prescribed is 100 mg and your supply is 50 mg tablets, how many tablets do you need?

To determine how many 50 mg tablets are needed to fulfill a prescription of 100 mg, you can use a simple calculation. First, identify how many 50 mg doses are required to reach the target dose of 100 mg.

Start by dividing the prescribed dose (100 mg) by the strength of the tablets available (50 mg):

100 mg ÷ 50 mg/tablet = 2 tablets.

This calculation shows that two 50 mg tablets will provide the required 100 mg dose. Therefore, choosing two tablets is correct because it ensures the patient receives the full prescribed amount.