| Name | Aliases |
|---|---|
| Spectazole (Econazole Nitrate) | Pevaryl Cream |
| Spectracef (Cefditoren Pivoxil) | |
| Spectral.DNC-N (Aqua / Alcohol / Glycerin / Disodium Phosphate / Azelaic Acid) | |
| Spedra (Avanafil) | Stendra |
| Spinosad (Comfortis) | |
| Spinosad / Milbemycin oxime (Trifexis) | |
| Spiolto Respimat (Olodaterol Hydrochloride / Tiotropium Bromide Monohydrate) | Stiolto Respimat |
| Spiriva (Tiotropium Bromide Monohydrate) | |
| Spiriva Respimat (Tiotropium Bromide Monohydrate) | |
| Spironolactone (Aldactone) | |
| Spironolactone (Carospir) | |
| Spironolactone / Hydrochlorothiazide (Aldactazide) | Hydrochlorothiazide / Spironolactone |
| Sporanox (Itraconazole) | |
| Spravato (Esketamine) | |
| Sprix Nasal (Ketorolac Tromethamine) | |
| Sprycel (Dasatinib) | |
| Sronyx (Ethinyl Estradiol / Levonorgestrel) | |
| St. John's Wort Extract (Hypericum Perforatum) | |
| Stablon (Tianeptine) | |
| Stadol (Butorphanol Tartrate) | Torbugesic, Torbutrol |