Compounding Ingredient Quantities Practice Test

A 30-year-old female is prescribed a compounded oral solution of potassium chloride at 10 mEq/15 mL. Prepare a total of 480 mL using purified water and a suitable sweetener q.s. ad 480 mL; the prescriber requests dye-free. If potassium chloride provides 1 mEq per 74.5 mg, using a balance and graduated cylinder, how many grams of potassium chloride are needed for the total batch?

A 45-year-old male requires a compounded topical menthol cream at 0.5% w/w for pruritus. Prepare 200 g total using a hypoallergenic cream base q.s. ad 200 g; avoid added fragrances. Using an electronic balance and ointment slab/spatula, what quantity of menthol (in grams) is needed for this formulation?