| SMCC-DM1 | 1228105-51-8 | | 0 |
| Sizofiran | 9050-67-3 | Antineoplastics | 0 |
| Smilagenin | 126-18-1 | Dental and Oral Agents | 0 |
| Sobetirome | 211110-63-3 | | 0 |
| Soblidotin | 149606-27-9 | Anticancer drugs | 0 |
| Sobrerol | 42370-41-2 | Antitussives | 0 |
| Sodelglitazar | 447406-78-2 | Anti-diabetics | 0 |
| Sodium Iodide I-131 | 7790-26-3 | | 0 |
| Sodium aluminosilicate | 1344-00-9 | | 0 |
| Sodium apolate | 25053-27-4 | Lipid-lowering agents | 0 |
| Sodium aurothiomalate | 12244-57-4 | | 0 |
| Sodium aurotiosulfate | 33614-49-2 | Antidotes, Deterrents, and Toxicologic Agents | 0 |
| Sodium benzoate | 532-23-1 | | 0 |
| Sodium borate | 1330-43-4 | Anti-infective Agents | 0 |
| Sodium camphorsulfonate | 21791-94-6 | | 0 |
| Sodium carbonate | 497-19-8 | | 0 |
| Sodium cation | 17341-25-2 | Electrolytes | 0 |
| Sodium cellulose phosphate | 9038-41-9 | Gastrointestinal Agents | 0 |
| Sodium cetostearyl sulfate | | | 0 |
| Sodium chlorite | 7758-19-2 | Dermatological Agents | 0 |
| Sodium chromate Cr-51 | 10039-53-9 | Diagnostic agents | 0 |
| Sodium dichloroacetate | 2156-56-1 | Emollients and protectives | 0 |
| Sodium feredetate | 15708-41-5 | Other substances | 0 |
| Sodium fluoride F-18 | | | 0 |
| Sodium glycerophosphate | 1334-74-3 | Additives | 0 |
| Sodium hexametaphosphate | 68915-31-1 | | 0 |
| Sodium lauryl sulfoacetate | 1847-58-1 | Gastrointestinal Agents | 0 |
| Sodium metabsulfite | 7681-57-4 | | 0 |
| Sodium metavanadate | 13718-26-8 | Electrolytes | 0 |
| Sodium molybdate | 7631-95-0 | | 0 |
| Sodium nitrate | 7691-99-4 | | 0 |
| Sodium perchlorate | 7601-89-0 | | 0 |
| Sodium phosphate P 32 | 7635-46-3 | Antineoplastics | 0 |
| Sodium sulfide | 1313-82-2 | Electrolytes | 0 |
| Sodium sulfite anhydrous | 7757-83-7 | | 0 |
| Sodium thiosulfate pentahydrate | 10102-17-7 | | 0 |
| Sodium tripolyphosphate | 7758-29-4 | Alkalinizing agents | 0 |
| Sodium zirconium cyclosilicate | 17141-74-1 | Gastrointestinal Agents | 0 |
| Sofinicline | 799279-80-4 | | 0 |
| Sofituzumab vedotin | 1418200-58-4 | Other substances | 0 |