Umifenovir is an indole-based, hydrophobic, dual-acting direct antiviral/host-targeting agent used for the treatment and prophylaxis of influenza and other respiratory infections.[A191475] It has been in use in Russia for approximately 25 years and in China s…

Uridine triacetate, formerly known as vistonuridine, is an orally active prodrug of the naturally occurring nucleoside uridine. It is used for the treatment of hereditary orotic aciduria (Xuriden), or for the emergency treatment of fluorouracil or capecitabin…

Valsartan belongs to the angiotensin II receptor blocker (ARB) family of drugs, which also includes [telmisartan], [candesartan], [losartan], [olmesartan], and [irbesartan]. ARBs selectively bind to angiotensin receptor 1 (AT1) and prevent the protein angiote…

Vardenafil is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) and an oral therapy for the treatment of erectile dysfunction.[L45563,L45568] During sexual stimulation, nitric oxide (NO) is released from n…

Vericiguat is a direct stimulator of soluble guanylate cyclase (sGC) used in the management of systolic heart failure to reduce mortality and hospitalizations.[L31153] A key component of the NO-sGC-cGMP signaling pathway that helps to regulate the cardiovascu…

Viomycin is a tuberactinomycin antibiotic that was used to treat Mycobacterium tuberculosis until it was replaced by the less toxic capreomycin. These drugs bind RNA in bacterial ribosomes and inhibit protein synthesis. Viomycin was derived from the actinomyc…

Warfarin is an anticoagulant drug normally used to prevent blood clot formation as well as migration. Although originally marketed as a pesticide (d-Con, Rodex, among others), Warfarin has since become the most frequently prescribed oral anticoagulant in Nort…

A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with…