| Fluoresceinylthioureido | | | 0 |
| Fluorescin | 518-44-5 | | 0 |
| Fluoride ion | 16984-48-8 | Minerals and electrolytes | 0 |
| Fluoro-Phosphite Ion | 10163-15-2 | | 0 |
| Fluoroacetic acid F-18 | 7574-44-9 | | 0 |
| Fluoroazomycin arabinoside F-18 | 864084-85-5 | Anticancer drugs | 0 |
| Fluorocholine F-18 | 407582-13-2 | Diagnostic agents | 0 |
| Fluorocyclopentenylcytosine | 865838-26-2 | Anticancer drugs | 0 |
| Fluorodopa (18F) | 92812-82-3 | Other substances | 0 |
| Fluoroestradiol F-18 | 94153-53-4 | Hormonal Agents | 0 |
| Fluorofuranylnorprogesterone F-18 | 160388-43-2 | Anticancer drugs | 0 |
| Fluoromisonidazole F-18 | 104613-87-8 | Anticancer drugs | 0 |
| Fluorotryptophane | 16626-02-1 | | 0 |
| Fluperolone | 3841-11-0 | Dermatological Agents | 0 |
| Fluprednidene | 2193-87-5 | | 0 |
| Fluprednisolone | 53-34-9 | Anti-inflammatory Agents | 0 |
| Fluprednisolone acetate | 570-36-5 | Electrolytes | 0 |
| Fluprostenol | 40666-16-8 | | 0 |
| Flurandrenolide acetate | 2802-11-1 | Electrolytes | 0 |
| Flurbiprofen axetil | 91503-79-6 | Analgesics | 0 |
| Flurithromycin | 82664-20-8 | Antibacterials | 0 |
| Flurothyl | 333-36-8 | | 0 |
| Flutemetamol | 637003-10-2 | Contrast Media | 0 |
| Flutemetamol (18F) | 765922-62-1 | Central Nervous System Agents | 0 |
| Fluticasone | 90566-53-3 | Hormones | 0 |
| Flutriciclamide F-18 | 1274863-98-7 | | 0 |
| Fluzoparib | 1358715-18-0 | Anticancer drugs | 0 |
| Fobrepodacin | 1384984-31-9 | | 0 |
| Folcodine | | | 0 |
| Foliglurax | 1883329-53-0 | Dental and Oral Agents | 0 |
| Folitixorin | 3432-99-3 | Enzyme Replacements/modifiers | 0 |
| Follitropin Alpha | 56832-30-5 | | 0 |
| Follitropin beta | 9002-68-0 | | 0 |
| Fominoben | 18053-31-1 | | 0 |
| Fomivirsen | 144245-52-3 | Anti-infective Agents | 0 |
| Fonadelpar | 515138-06-4 | | 0 |
| Fontolizumab | 326859-36-3 | | 0 |
| Foralumab | 946415-64-1 | Other substances | 0 |
| Forasartan | 145216-43-9 | | 0 |
| Fordadistrogene movaparvovec | 2248111-37-5 | | 0 |