| Gallium citrate Ga-67 | | | 0 |
| Gallium nitrate | 13494-90-1 | | 0 |
| Gallopamil | 16662-47-8 | Other calcium Channel Blockers | 0 |
| Galsulfase | 552858-79-4 | | 0 |
| Galunisertib | 700874-72-2 | Anticancer drugs | 0 |
| Gambir | 8001-48-7 | | 0 |
| Gamma Hydroxybutyric Acid | 591-81-1 | | 0 |
| Gamma-Phenyl-Butyric Acid | | | 0 |
| Gamma-Tocopherol | 54-28-4 | Antioxidants | 0 |
| Gamma-amino-beta-hydroxybutyric acid | 924-49-2 | Other substances | 0 |
| Gamma-carboxy-L-glutamic acid | 53861-57-7 | Other substances | 0 |
| Gamolenic acid | 506-26-3 | Dermatological Agents | 0 |
| Ganaplacide | 1261113-96-5 | Antimalarial | 0 |
| Ganaxolone | 38398-32-2 | | 0 |
| Gancotamab | 1509928-00-0 | Other substances | 0 |
| Gandotinib | 1229236-86-5 | | 0 |
| Ganetespib | 888216-25-9 | Other substances | 0 |
| Ganglioside GM1 | 116950-37-9 | | 0 |
| Ganitumab | 905703-97-1 | Other substances | 0 |
| Ganstigmine | 457075-21-7 | Dental and Oral Agents | 0 |
| Gantacurium Chloride | 213998-46-0 | | 0 |
| Gantenerumab | 1043556-46-2 | Other substances | 0 |
| Garadacimab | 2162134-62-3 | Other substances | 0 |
| Garenoxacin | 194804-75-6 | Antibacterials | 0 |
| Garetosmab | 2097125-54-5 | Other substances | 0 |
| Garivulimab | 2342597-81-1 | Other substances | 0 |
| Garlic | 8008-99-9 | | 0 |
| Garlic oil | 8000-78-0 | Antioxidants | 0 |
| Gastric inhibitory polypeptide | 100040-31-1 | Hormonal Agents | 0 |
| Gastric intrinsic factor | | | 0 |
| Gatralimab | 1826020-80-7 | Other substances | 0 |
| Gavestinel | 153436-22-7 | | 0 |
| Gavilimomab | 244096-20-6 | Other substances | 0 |
| Gavorestat | 2170729-29-8 | | 0 |
| Gaxilose | 14087-31-1 | Diagnostic agents | 0 |
| Gebasaxturev | 2122169-83-7 | | 0 |
| Gedatolisib | 1197160-78-3 | Enzyme Replacements/modifiers | 0 |
| Gedivumab | 1807954-17-1 | Other substances | 0 |
| gallium maltolate | | | 0 |
| gamma-Glutamylcysteine | 636-58-8 | Other substances | 0 |