32. A prescription calls for 8 mL of an ophthalmic suspension to contain 100 mg of hydrocortisone acetate in a vehicle of normal saline solution. A pharmacist has on hand a suspension of hydrocortisone acetate, 25 mg/mL, in normal saline solution. How many milliliters each of the suspension and normal saline solution should be used in compounding the prescription?
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First, we need to determine how many milliliters of the 25 mg/mL suspension are needed to obtain 100 mg of hydrocortisone acetate. To do this, we can use the formula: Amount (mg) = Concentration (mg/mL) × Volume (mL) Rearranging the formula to find the Show more…
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