When a medication is administered PO?

When a medication is administered PO (per os), it means it is taken orally, typically in the form of a tablet, capsule, or liquid. This route allows the medication to be absorbed through the gastrointestinal tract before entering the bloodstream. Oral administration is convenient and commonly used, but it may have a slower onset of action compared to other routes such as intravenous. Additionally, some medications may be affected by food or digestive conditions, which can influence their effectiveness.