| Salazosulfapyridine* |
| Salbutamol Sulfate* |
| Salicylamide |
| Salicylic Acid* |
| Salmeterol xinafoate |
| Sanilvudine |
| Santonin* |
| Sapropterin Hydrochloride |
| Saquinavir Mesilate |
| Sarpogrelate Hydrochloride |
| Sasapyrine |
| Scopolamine Butylbromide* |
| Scopolamine Hydrobromide* |
| Secobarbital Sodium |
| Selegiline Hydrochloride |
| Sennoside |
| Setiptiline Maleate |
| Sevoflurane |
| Siccanin |
| Sildenafil Citrate |
| Simfibrate* |
| Simvastatin |
| Sisomicin Sulfate* |
| Sivelestat sodium hydrate |
| Sobuzoxane |
| Sodium Benzoate* |
| Sodium Citrate* |
| Sodium Cromoglicate* |
| Sodium Ferrous Citrate |
| Sodium Fusidate |
| Sodium Glucuronate |
| Sodium Iopodate* |
| Sodium Picosulfate* |
| Sodium Prasterone Sulfate* |
| Sodium Rabeprazole |
| Sodium Salicylate* |
| Sodium Valproate* |
| Sodium risedronate hydrate |
| Sofalcone |
| d-Sorbitol* |
| Sotalol Hydrochloride |
| Sparfloxacin |
| Spectinomycin Hydrochloride |
| Spiperone |
| Spironolactone* |
| Stanozolol |
| Streptomycin Sulfate* |
| g-Strophanthin* |
| Sulbenicillin Sodium* |
| Sulconazole Nitrate |
| Sulfadiazine |
| Sulfadimethoxine |
| Sulfamethizole* |
| Sulfamethoxazole* |
| Sulfamonomethoxine* |
| Sulfatolamide |
| Sulfinpyrazone* |
| Sulfisomidin |
| Sulfisoxazole* |
| Sulfobromophthalein Sodium* |
| Sulindac |
| Sulpiride* |
| Sulpyrine* |
| Sultamicillin Tosilate |
| Sultiame* |
| Sultopride Hydrochloride |
| Sumatriptan Succinate |
| Suprofen |
| Suxamethonium Chloride* |
| Syrosingopine |