| Furvina | 189935-72-6 | Anti-infective Agents | 0 |
| Fusafungine | 1393-87-9 | | 0 |
| Fusicoccin | 20108-30-9 | | 0 |
| Futibatinib | 1448169-71-8 | Anticancer drugs | 0 |
| Futuximab | 1310460-85-5 | Other substances | 0 |
| Gabaculine | 87980-11-8 | | 0 |
| Gabexate | 39492-01-8 | Anticoagulants | 0 |
| Gacyclidine | 68134-81-6 | Central Nervous System Agents | 0 |
| Gadofosveset trisodium | 193901-90-5 | | 0 |
| Gadolinium | 7440-54-2 | Anti-inflammatory Agents | 0 |
| Gadolinium cation (3+) | 22541-19-1 | | 0 |
| Gadoversetamide | 131069-91-5 | | 0 |
| Galactose | 59-23-4 | Contrast Media | 0 |
| Galactose grease | | | 0 |
| Galacturonic Acid | 14982-50-4 | | 0 |
| Galcanezumab | 1578199-75-3 | Analgesics | 0 |
| Galeterone | 851983-85-2 | Hormones | 0 |
| Galicaftor | 1918143-53-9 | | 0 |
| Galidesivir | 249503-25-1 | Anti-infective Agents | 0 |
| Galiximab | 357613-77-5 | | 0 |
| Gallamine | 153-76-4 | Central Nervous System Agents | 0 |
| Gallamine Triethiodide | 65-29-2 | | 0 |
| Gallichrome | | | 0 |
| Gallium cation | 22537-33-3 | | 0 |
| Gallium citrate | 27905-02-8 | Diagnostic agents | 0 |
| 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 |
| gallium maltolate | | | 0 |
| gamma-Glutamylcysteine | 636-58-8 | Other substances | 0 |