| Viper Venoms | Venoms from SNAKES of the viperid family. They tend to be less toxic than elapid or hyd... more | 4 | 7 | Details |
| Viral Envelope Proteins | Layers of protein which surround the capsid in animal viruses with tubular nucleocapsid... more | 2 | 4 | Details |
| Viral Fusion Protein Inhibitors | Drugs that are designed to block the action of VIRAL FUSION PROTEINS and prevent VIRUSE... more | 6 | 16 | Details |
| Viral Fusion Proteins | Proteins, usually glycoproteins, found in the viral envelopes of a variety of viruses. ... more | 2 | 4 | Details |
| Viral Hepatitis Vaccines | Any vaccine raised against any virus or viral derivative that causes hepatitis. | 3 | 1 | Details |
| Viral Protease Inhibitors | Compounds that specifically inhibit PROTEOLYTIC ENZYMES that are encoded by VIRUSES. | 10 | 125 | Details |
| Viral Proteins | Proteins found in any species of virus. | 4 | 4 | Details |
| Viral Structural Proteins | Viral proteins that are components of the mature assembled VIRUS PARTICLES. They may in... more | 3 | 4 | Details |
| Viral Vaccines | Suspensions of attenuated or killed viruses administered for the prevention or treatmen... more | 103 | 1 | Details |
| Viridiplantae | A monophyletic group of green plants that includes all land plants (EMBRYOPHYTA) and al... more | 53 | 52 | Details |
| Virulence Factors | Those components of an organism that determine its capacity to cause disease but are no... more | 1 | 0 | Details |
| Virus Neutralization | Not Available | 3 | 1 | Details |
| Virus-specific Hyperimmune Globulins | Not Available | 0 | 0 | Details |
| Viruses | Minute infectious agents whose genomes are composed of DNA or RNA, but not both. They a... more | 1 | 3 | Details |
| Viscoelastic Substances | Substances that display the physical properties of ELASTICITY and VISCOSITY. The dual-n... more | 2 | 18 | Details |
| Viscosupplements | Viscoelastic solutions that are injected into JOINTS in order to alleviate symptoms of ... more | 1 | 17 | Details |
| Vitamin A | Retinol and derivatives of retinol that play an essential role in metabolic functioning... more | 7 | 78 | Details |
| Vitamin B 12, biosynthesis | Not Available | 2 | 16 | Details |
| Vitamin B Complex | A group of water-soluble vitamins, some of which are COENZYMES. | 47 | 386 | Details |
| Vitamin B Complex Compounds | Not Available | 0 | 0 | Details |
| Vitamin B12 and Folic Acid | Not Available | 5 | 38 | Details |
| Vitamin C and analogues | A six carbon compound related to glucose. It is found naturally in citrus fruits and ma... more | 7 | 32 | Details |
| Vitamin D and Analogues | A vitamin that includes both CHOLECALCIFEROLS and ERGOCALCIFEROLS, which have the commo... more | 24 | 53 | Details |
| Vitamin E | A generic descriptor for all TOCOPHEROLS and TOCOTRIENOLS that exhibit ALPHA-TOCOPHEROL... more | 10 | 96 | Details |
| Vitamin E, analogs & derivatives | Not Available | 2 | 27 | Details |