Question

A physician prescribed mometasone furoate monohydrate (NASONEX) nasal spray for a patient, with directions to

administer two sprays into each nostril once daily. If each spray contains 50 μg of drug and the container can deliver a
total of 120 sprays, how many micrograms of drug would the patient receive daily, and how many days of use will the
prescription last the patient?

Answer 1

Answer: The patient receives
`200\ \mu g` daily.

The prescription will last 30 days .

Explanation:

Given : Prescription= Two sprays into each nostril once daily.

That means total sprays for both nostrils =
`2*2=4` [∵ 1 nostrils in each nose.]

If each spray contains
`50 \mu g` of drug, then the amount of drug received by patient daily :-

`4*50=200\ \mu g`

Thus , the patient receives
`200\ \mu g` daily.

Also, the container can deliver a total of 120 sprays.

Then, the number of days of use will the prescription last the patient will be:_

`(120)/(4)=30`

Hence, the prescription will last 30 days of use .