What does the abbreviation "PR" imply regarding administration route?

The abbreviation "PR" stands for "per rectum," indicating that the medication should be administered rectally. This route is often used for delivering medications that may be more effective or less irritating when absorbed through the rectal mucosa. For instance, certain medications for nausea or fever can be administered rectally to provide quick relief, especially in patients who cannot take medications orally due to vomiting or difficulty swallowing.

The use of "PR" is widely recognized in medical and pharmaceutical contexts as it specifically guides healthcare providers on how to administer the medication appropriately to ensure its effectiveness and safety.