What is the abbreviation for "by mouth" in veterinary medication?

The abbreviation for "by mouth" in veterinary medication is indeed "PO," which stands for the Latin phrase "per os." This term is commonly used to indicate that a medication should be administered orally, meaning it is taken through the mouth. This route of administration is frequently chosen for medications because it is convenient for both the animal and the caregiver, and many drugs are effective when ingested.

Other common routes of administration have distinct abbreviations, which helps in understanding how and where the medication should be given. For example, "IM" refers to intramuscular injections, where medications are delivered directly into a muscle. "IV" stands for intravenous, indicating that the medication is given directly into the bloodstream via a vein, thereby allowing for rapid absorption. "AU" means "each ear" in veterinary terms and is specifically used for administering treatments into the ears of animals. Understanding these abbreviations is crucial for clear communication and proper medication administration in veterinary practice.