Answer: The patient receives [tex]200\ \mu g[/tex] daily.
The prescription will last 30 days .
Step-by-step explanation:
Given : Prescription= Two sprays into each nostril once daily.
That means total sprays for both nostrils = [tex]2\times2=4[/tex] [∵ 1 nostrils in each nose.]
If each spray contains [tex]50 \mu g[/tex] of drug, then the amount of drug received by patient daily :-
[tex]4\times50=200\ \mu g[/tex]
Thus , the patient receives [tex]200\ \mu g[/tex] 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:_
[tex]\dfrac{120}{4}=30[/tex]
Hence, the prescription will last 30 days of use .
