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 1 tbsp TID for 2 weeks. The pharmacy provided 630 mL of a solution containing a total of 15.561 g of drug content. Calculate the mg quantity of drug administered per day.


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lb equals 1111.5 mg kg

    The volume of the total content is 630 mL, which contains 15.561 g of the drug, or 15561 mg of the drug.
    Volume contained in each dose (1 tbsp) = 15 mL.
    Number of dose per day (TID) = 3
    Therefore, volume of solution administered per day = 15 × 3 mL = 45 mL.
    Therefore, we can write:
    `(630\quad mL)/(15561\quad mg) = (45\quad mL)/x therefore x = 1111.5\quad mg` Ans.