| Name | Aliases |
|---|---|
| Sitagliptin Phosphate / Metformin Hydrochloride (Janumet) | |
| SK-Lygen (Chlordiazepoxide Hydrochloride) | Libritabs, Limbitrol |
| Skelaxin (Metaxalone) | |
| Skelid (Tiludronate Disodium) | |
| Skin Barrier Emulsion (EpiCeram) | |
| Skin Prep (Citroflex) | |
| Skinoren Cream (Azelaic Acid) | Azelex |
| Skyclarys (Omaveloxolone) | |
| Skyrizi (Risankizumab-rzaa) | |
| Slinda (Drospirenone) | Slynd |
| Slynd (Drospirenone) | Slinda |
| Soaanz (Torsemide) | Demadex |
| Sodium Alginate / Sodium Bicarbonate / Calcium Carbonate (Gaviscon Double Action Liquid) | Gaviscon Double Action Mint |
| Sodium Alginate / Sodium Bicarbonate / Calcium Carbonate (Gaviscon Extra Strength) | |
| Sodium Bicarbonate / Citric Acid / Magnesium Sulfate (Andrews Original Salts) | |
| Sodium Carboxymethylcellulose (TheraTears Dry Eye Therapy) | |
| Sodium Chloride (Hypertonic Saline) | |
| Sodium Chloride (Muro 128 Eye Drops) | |
| Sodium Chloride (Muro 128 Ophthalmic Ointment) | |
| Sodium Chloride (Saline Flush Syringe) |