Pharmacy Equations

Question 1

Gross margin as percent of sales

Answer 1

[(Pharmacy sales - cost of goods sold)/pharmacy sales] x 100

Question 2

What are the three major methods for calculating pediatric doses based on adult dosing information?

Answer 2

1) Clark’s Rule
2) Young’s Rule
3) Body Surface Area (BSA) Dosing

Question 3

What is equation of the “percentage (%)” when working with gram(s) and milliliter(s)?

Answer 3

g / 100 mL

Question 4

What is the equation of the “% error”?

Answer 4

(Sensitivity Requirement / Desired Weight) x 100%

Question 5

What is the equation of the “body surface area (BSA) dosing”?

Answer 5

[√height (cm) x weight (kg) / 3,600] / 1.73 m²

BSA / 1.73 m²

Question 6

What is the equation of the “body surface area (BSA)?

Answer 6

√height (cm) x weight (kg) / 3,600

Question 7

What is the equation of the Clark’s Rule?

Answer 7

(Weight / 150 Ib) x adult dose

Question 8

What is the equation of the over-the-counter drug pricing in retail cost(s)?

Answer 8

Retail cost = AWP x (1 + markup)

• markup expressed as a decimal
• dispensing fee does not apply to OTC drug pricing

Question 9

What is the equation of the prescription drug pricing in retail cost(s)?

Answer 9

[AWP x (1 + markup)} + dispensing fee

• markup expressed as a decimal

Question 10

What is the equation of the Young’s Rule?

Answer 10

Age / (age + 12) x adult dose

Question 11

What type of equation is described as the average price paid by the pharmacy to acquire a drug product from a wholesale distributor

Answer 11

“Average wholesale price” (AWP)

Question 12

What type of equation is described as the list price for a drug purchased from a manufacturer by a wholesale distributor or pharmacy, substitutes the “average wholesale price” (AWP) if its value is not given, and does not take into account any discount or rebates that purchasers are able obtain?

Answer 12

“Wholesale acquisition cost” (WAC)