Cancelling factors

by Mary
(Santa Ana CA)

8 Grams of a drug was used to prepare 2.5 pounds of a medication cream. How many milligrams of drug are in each ounce of cream?

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Cencelling factors
by: Brad Wojcik, Pharm D

1 oz(8 g/2.5 lb)(1 lb/16 oz)(1000 mg/g)=200 mg

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