Harrison's Manual of Medicine
- G6PD (glucose-6-phosphate dehydrogenase) deficiency
- gait analysis
- galantamine, for Alzheimer's disease
- gallstones
- gametocyte
- gamma-glutamyl transpeptidase (GGT)
- gamma knife radiosurgery
- Gardnerella vaginalis infections
- GAS infections: see group A Streptococcus infections
- gastrectomy
- gastric atrophy
- gastric lavage
- gastric tumor, benign
- gastrointestinal function, normal
- gastrointestinal stromal cell tumor (GIST)
- gastrointestinal telangiectasis
- gastropathies
- gatifloxacin, for tuberculosis
- GBS (group B Streptococcus)
- gefitinib, for lung cancer
- gemfibrozil, for dyslipidemia
- gemifloxacin, for community-acquired pneumonia
- generalized convulsive status epilepticus (GCSE)
- geographic tongue
- gestational trophoblastic malignancy
- GGT (gamma-glutamyl transpeptidase)
- giant platelets
- Gilbert syndrome
- gingivitis
- gingivostomatitis, HSV
- GIST (gastrointestinal stromal cell tumor)
- Glasgow Coma Scale
- glatiramer acetate, for multiple sclerosis
- glaucoma
- glibornuride, for diabetes mellitus
- gliclazide, for diabetes mellitus
- glimepiride, for diabetes mellitus
- glipizide, for diabetes mellitus
- gliquidone, for diabetes mellitus
- global aphasia
- globulin, in liver disease
- globus pharyngeus
- glomerulosclerosis, focal
- glossopharyngeal neuralgia
- GLP-1 receptor agonists, for diabetes mellitus
- glucagon, for hypoglycemia
- gluconate, for hyperkalemia
- glucosamine and chondroitin, for osteoarthritis
- glucose-6-phosphate dehydrogenase (G6PD) deficiency
- glucose-lowering agents, oral
- glucose therapy, for hypoglycemia
- α-glucosidase inhibitors, for diabetes mellitus
- glulisine, for diabetes mellitus
- gluten-free diet
- glyburide, for diabetes mellitus
- glyclopyramide, for diabetes mellitus
- glycocholic breath test
- glycolytic defects
- glycoprotein IIb/IIa antagonists
- Gottron's sign
- gout
- gouty arthritis
- GPIHBP1 deficiency
- graded exercise therapy, for chronic fatigue syndrome
- grain dust
- granisetron, for nausea and vomiting
- Granulicatella infections
- granuloma inguinale
- granulomatosis infantiseptica
- granulomatous angiitis, isolated
- Graves' ophthalmopathy
- gray hepatization
- group B Streptococcus (GBS)
- group C Streptococcus
- group D Streptococcus
- group G Streptococcus
- guanfacine, for tics
- gumma
- guselkumab, for psoriasis