Math and Dosage Calculations for Health Care 3rd Edition by James Whaley, Kathryn Booth, Booth Kathryn

Exercise 22

You are working in a pharmacy when the following prescription comes in: Valium 7 mg PO tid for 7 days. The drug labels below represent what you have on hand for filling this prescription.
What changes would you make in filling the order if the prescription read Valium 15 mg PO tid for 7 days? How many tablets will the patient need for this new order?