What does "P.o." mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"P.o." is a term used in medicine that stands for "per os", which is Latin for "by mouth". It is used to indicate that a medication or treatment should be taken orally, or swallowed. This is the most common way people take their medications. It's used by doctors and pharmacists to clearly communicate how a medicine should be taken.
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