For each kilogram of a person weight ,20 miligram of drug is to be given. What dosage should be given to an adult weights 170 pounds ?

Question

If the drug comes in a table form ,each tablet is 500 mg.how many tables should be given 

Answer 1

Convert 170 pounds to kg:  170 lbs x 1 kg/2.2 lbs = 77.27 kg weight of adult

Calculate dose in mg:  77.27 kg x 20 mg/kg = 1545 mg = dose to be given = 1.5 g

 

Number of tablets:  1.5 g x 1000 mg/g x 1 tablet/500 mg = 3 tablets