We've got 1 definition »

What does PER OS stand for? 

What does PER OS mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: PER OS.

Filter by: Sort by:PopularityAlphabeticallyCategory

By mouth

Medical » Physiology

Rate it:

What does PER OS mean?

per os
Oral administration is a route of administration where a substance is taken through the mouth. Per os abbreviated to P.O. is sometimes used as a direction for medication to be taken orally. Many medications are taken orally because they are intended to have a systemic effect, reaching different parts of the body via the bloodstream, for example.Oral administration can be easier and less painful than other routes, such as injection. However, the onset of action is relatively low, and the effectiveness is reduced if it is not absorbed properly in the digestive system, or if it is broken down by digestive enzymes before it can reach the bloodstream. Some medications may cause gastrointestinal side effects, such as nausea or vomiting, when taken orally. Oral administration can also only be applied to conscious patients, and patients able to swallow.

see more »

Discuss these PER OS abbreviations with the community:


    Know what is PER OS? Got another good explanation for PER OS? Don't keep it to yourself!

    Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web!


    Use the citation options below to add these abbreviations to your bibliography.


    "PER OS." Abbreviations.com. STANDS4 LLC, 2024. Web. 3 Mar. 2024. <https://www.abbreviations.com/PER%20OS>.

    Image or illustration of

    PER OS

    By mouth
    Credit »

    Browse Abbreviations.com

    Free, no signup required:

    Add to Chrome

    Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!


    The ultimate acronym test

    • A. Idiopathic Care Unit
    • B. Incremental Cost-Utility
    • C. Idiopathic Cystitis Ultrasound
    • D. Intensive Care Unit


    Share an image of PER OS


    Hearing impaired tip:

    Sign language

    How do you say PER OS in ASL sign language fingerspelling?