Medication Label & Prescription Abbreviations

A prescription abbreviation originating from Latin meaning "bis in die," directing a medication to be given twice a day, approximately 12 hours apart.

A prescription abbreviation from Latin "ter in die," directing a medication to be administered three times a day, roughly every 8 hours.

A veterinary prescription abbreviation from Latin "semel in die," directing a medication to be given once a day, every 24 hours.

A medical route abbreviation from Latin "per os," meaning that a medication or food must be administered orally by mouth.

An injection route abbreviation designating administration into the subcutaneous connective tissue layer beneath the skin.

An injection route abbreviation designating administration of medication directly into a muscle belly.

An administration route abbreviation designating delivery of fluids or medications directly into a vein.

A prescription abbreviation from Latin "pro re nata," directing a medication to be administered only as needed or as circumstances arise.

A medical directive from Latin "nil per os," meaning nothing should be given by mouth (no food, treats, or water) for a specified period.