A prescription calls for 300 mg of a drug. If the drug is available in 150 mg tablets, how many tablets should the patient take?

To determine how many 150 mg tablets are needed to achieve a total dose of 300 mg, you can divide the total required dose by the dose per tablet.

Starting with the prescribed dosage of 300 mg, you take that amount and divide it by the strength of each tablet, which is 150 mg:

300 mg ÷ 150 mg/tablet = 2 tablets

This calculation shows that the patient needs to take 2 tablets to reach the required dosage of 300 mg. Thus, choosing to take 2 tablets appropriately fulfills the prescription requirements, ensuring the patient receives the correct amount of medication.