### Dosing by body weight for a hypothetical drug

6. Patient-based Dose 6.2) Body Weight 6.2.1) Body weight General

6.2.1.1) Drug dose based on body weight Easy 1

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A daily dose of 2 mg/kg,how many 90-mg capsules of the drug product should be dispensed to a patient weighing 198 lb if the dosage regimen calls for 15 weeks of therapy?

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lb equals 210 kg

Here weight of patient is 90 kg or 198 lb and
Daily dose of drug is 2 mg/kg

Therefore,
Daily dose
= 90 \quad kg × 2 \quad (mg)/(kg) = 180 \quad mg

weight of the capsule is 90 mg

patient needs
= (180)/(90)
= 2 capsules/day

for 15 weeks of therapy patient needs
 (2 \quad c a p s u l e s )/(day)× (7\quad day)/(week) × 15 \quad weeks
= 210 capsules Ans.

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