Understanding Medical Prescriptions: What Does PO By Mouth Mean?
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4 min read
The oral route is the most common method of drug administration, prized for its convenience and patient acceptance [1.5.2, 1.5.5]. When a prescription says to take a medication PO, it is providing a crucial instruction about this method. So, **what does PO by mouth mean?** It is an abbreviation for the Latin phrase *per os*, which literally translates to 'by mouth' [1.2.2, 1.3.3].
