Drug content per day
10. Dose - general concepts 10.1) Oral liquid 10.1.1) Oral liquid
10.1.1.1) Oral liquid Normal 1
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A patient is taking an oral solution 2.5 mL QD for 2 weeks. The pharmacy provided 35 mL of a solution containing a total of 0.1085 g of drug content. Calculate the mg quantity of drug administered per day.
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lb equals 7.75 mg kg
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The volume of the total content is 35 mL, which contains 0.1085 g of the drug, or 108.5 mg of the drug.
Volume contained in each dose (2.5 mL) = 2.5 mL.
Number of dose per day (QD) = 1
Therefore, volume of solution administered per day = 2.5 × 1 mL = 2.5 mL.
Therefore, we can write:
`(35\quad mL)/(108.5\quad mg) = (2.5\quad mL)/x therefore x = 7.75\quad mg` Ans.