What is the administration route indicated by the abbreviation "PR"?

The abbreviation "PR" stands for "per rectum," indicating that a medication is administered rectally. This route is often used for medications that need to be absorbed quickly into the bloodstream or when patients are unable to take medications orally due to vomiting, difficulty swallowing, or altered levels of consciousness. Rectal administration can provide effective delivery of certain medications, such as anti-nausea, pain relief, or laxatives, and is particularly beneficial in pediatric or geriatric populations where oral administration may be challenging.

In contrast, the other routes mentioned do not align with the abbreviation "PR." Oral administration refers to taking medication by mouth, intranasal means delivering medication through the nasal passages, and topical refers to medications applied directly to the skin or mucous membranes. Each of these routes has specific indications and uses, but they are distinct from the rectal route indicated by "PR."