vaborbactam valaciclovir hydrochloride valerian extract valganciclovir hydrochloride valine valproate semisodium valproic acid valsartan vancomycin hydrochloride vandetanib vardenafil hydrochloride vardenafil hydrochloride trihydrate varenicline tartrate varicella-zoster virus varicella-zoster virus (live) vecuronium bromide vedolizumab velaglucerase alfa velmanase alfa velpatasvir vemurafenib venetoclax venlafaxine hydrochloride verapamil hydrochloride vericiguat vernakalant hydrochloride Vernal pollen (Anthoxanthum odoratum) verteporfin vibrio cholerae vigabatrin vilanterol trifenatate vildagliptin vinblastine sulfate vincristine sulfate vindesine sulfate vinorelbine tartrate vismodegib vitamin a vitamin b12 vitamin e voclosporin volanesorsen sodium von willebrand factor vonicog alfa voretigene neparvovec voriconazole vortioxetine hydrobromide voxelotor voxilaprevir vutrisiran sodium