Question
How many milligrams of codeine phosphate are required to compound the following prescription?$\mathrm{R}$Codeine phosphate gr viissLactose q.s. gr CM. et. Ft. DTD cap. \# xxSig. 1 q $6 \mathrm{hr}$, prn pain
Step 1
The prescription states "Codeine phosphate gr viiss," which means codeine phosphate in the amount of 7.5 grains (since "viiss" is the Roman numeral for 7.5). Show more…
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