| Abbreviation | Definition |
|---|---|
| GER | Granule, Extended Release |
| GERD | Gastro-Esophageal Reflux Disease |
| GERD | Gastro-Esophagial Reflux Disease |
| GFR | Glomeration Filtration Renal |
| GFR | Glomerular Filtration Rate |
| GFR? | Glomerular Filtration Rate |
| GFS | Gel Forming Solution |
| GG | Gamma Globulin |
| GG | Guaifenesin |
| GGG | Growing Growing Growing |
| GH | General health |
| GH | Genetic Haemochromatosis |
| GHA | Growth Hormone Antagonist |
| GHF | Gastro Hemorrhagic Fever |
| GHQ | General Health Questionnaire |
| GHR | Growth Hormone Releaser |
| GHRH | Growth Hormone Releasing Hormone |
| GI | Germs Incognito |
| GI | Glycemic Index |
| GIA | GastroIntestinal Anastomosis |