Drug content in the container

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 QID. If the patient is taking 732 mg of the drug in each dose, and if the bottle supplies the drug for 30 days, then calculate the amount of drug (in gram unit) contained in the bottle.


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lb equals 87.84 g kg

    Volume of each dose (1 tbsp) = 15 mL.
    Number of dose per day (QID) = 4
    Numder of days the bottle is supplied for (30 days) = 30
    Therefore, volume of the medication in the bottle = 15 × 4 × 30 mL = 1800 mL.
    Given that, there is 732 mg drug contained in each dose (1 tbsp). Therefore, we can write:

    `(732\quad mg)/(15\quad mL)=x/(1800 \quad mL)`
    `therefore x = 87840 \quad mg = 87.84\quad g` Ans.