| U | ||
| Undecylenic Acid | Desenex | |
| Urokinase | Abbokinase | |
| Ursodiol | Actigall | |
| V | ||
| Valproic Acid | Depakene | |
| Vancornycin | Vancocin, Vancoled | |
| Vasopressin | Pitressin | |
| Vecuronium Bromide | Norcuron | |
| Venlafaxine | Effexor | |
| Veraparnil HOI | Calan, Isoptin, Verelan | |
| Vidarabine | Vira-A | |
| Vinblastine Sulfate | Velban, Velsar | |
| Vincristine Sulfate | Oncovin, Vincasar | |
| Vitamin A | AquasolA | |
| Vitamin B Complex w/C | Allbee w/C, Stesscaps, Surbex-T | |
| Vitamin BI | Thiamine HCl | |
| Vitamin B2 | Riboflavin | |
| Vitamin B3 | Niacin, Nicotinic Acid | |
| Vitamin B5 | Calcium Pantothenate, Pantothenic Acid | |
| Vitamin 136 | Pyridoxine HCI | |
| Vitamin B12 | Cyanocobalamin | |
| Vitamin C | Ascorbic Acid | |
| Vitamin 0 | Calciferol | |
| Vitamin D2 | Ergocalciferol | |
| Vitamin E | AquasolE | |
| Vitamin K1 | Mephyton, Phytonadione, AquaMEPHYTON | |
| W | ||
| Warfarin Sodium | Coumadin, Panwarfin | |
| Z | ||
| Zalcitabine | Hivid | |
| Zidovudine (AZT) | Retrovir | |
| Zolpidem Tartrate | Ambien |