What Does GEF Mean in Medical Terms?

GEF stands for gefitinib (chart shorthand). EGFR blocker pill shorthand.

gefitinib (chart shorthand)

EGFR blocker pill shorthand.

Where you will see GEF

You will most often see GEF in medication orders and prescriptions, blood results and cancer treatment charts.

Example

A medication order might be written with “GEF” as shorthand for gefitinib (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.