What does p.r. stand for in prescribing terms?

• A. Per rectum
• B. Per vagina
• C. With
• D. After meals

Answer: (A)

p.r. indicates per rectum, meaning the medication should be given through the rectum (for example, as a suppository or enema). This route is chosen when a patient cannot take medicines by mouth, or when local rectal effects or rapid absorption through the rectal mucosa are desired. It’s distinct from other meanings like vaginal administration or taking with food, which use different indications.