1. ## word problem help

A prescription for nifedipine calls for 0.2 mg/kg of body weight, four times per day. The drug is packaged in capsules of 5 mg. How many capsules per dose should be given to a patient who weighs 75 kg?

2. You can set the dose up as a ratio of "mg of nifedipine : kg of body weight"

$0.2 : 1$

$0.2 \times 75 : 1 \times 75$

$15 : 75$.

So each dose, he is going to need $15\,\textrm{mg}$ of nifedipine, or $3$ capsules.