What Does GEN Mean in Medical Terms?

GEN stands for gentamicin (chart shorthand). Aminoglycoside antibiotic chart shorthand.

gentamicin (chart shorthand)

Aminoglycoside antibiotic chart shorthand.

Where you will see GEN

You will most often see GEN in medication orders and prescriptions, microbiology results and infection-control notes.

Example

A medication order might be written with “GEN” as shorthand for gentamicin (chart shorthand).

Related abbreviations

Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.

Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.