Final answer:
The correct option for Mr. Butterworth's Farxiga prescription is that it is for 5 mg to be taken once daily by mouth. 'Po' indicates by mouth and 'qd' means once a day in pharmacy terms.
Step-by-step explanation:
The correct interpretation of Mr. Butterworth's prescription for Farxiga is that it is intended to be taken as 5 mg once daily by mouth. Therefore, the correct option is:
a. Mr. Butterworth brings in the prescription for Farxiga, 5 mg, to be taken once daily.
Pharmacy Prescription Interpretation
In pharmacy terminology, 'po' refers to 'per os' which means by mouth, and 'qd' stands for 'quaque die' indicating once a day. When breaking down the prescription 'Farxiga 5 mg 1 po qd', it is understood that the patient should take one dose of Farxiga, with each dose being 5 mg, orally once per day.