Recomended dose by body weight
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 pharmacist compounds a suspension from oseltamivir phosphate capsules to contain 25 mg of drug per milliliter. Using Table shown, calculate the single dose in milliliters for a pediatric patient weighing 20.3 lb.
| Body Weight | Recomended dose x 5 days |
|---|---|
| 15kg or less | 200 mg twice daily |
| 15.1to 23 kg | 300 mg twice daily |
| 23.1to 40 kg | 400 mg twice daily |
| 40.1 kg or more | 500 mg twice daily |
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lb equals 8.00 ml kg
- Here patient's weight
` = 20.3 \quad lb × (0.454 \quad kg)/(1 \quad lb) = 9.2162 \quad kg ` -
From Table, the dose for the pediatric patient is 200 mg.
Therefore,
`200 \quad mg × (1\quad ml)/(25 \quad mg) = 8.00 \quad ml` Ans.
| Body Weight | Recomended dose x 5 days |
|---|---|
| 15kg or less | 200 mg twice daily |
| 15.1to 23 kg | 300 mg twice daily |
| 23.1to 40 kg | 400 mg twice daily |
| 40.1 kg or more | 500 mg twice daily |