| Valerates | Derivatives of valeric acid, including its salts and esters. | 17 | 97 | Details |
| Valerian | Not Available | 3 | 3 | Details |
| Valerianaceae | The Valerian plant family of the order Dipsacales, subclass Asteridae, class Magnoliops... more | 1 | 5 | Details |
| Vanadates | Not Available | 7 | 9 | Details |
| Vanadium Compounds | Inorganic compounds that contain vanadium as an integral part of the molecule. | 1 | 4 | Details |
| Varicella Zoster Vaccines | A live, attenuated varicella virus vaccine used for immunization against chickenpox. It... more | 2 | 0 | Details |
| Varicellovirus | Not Available | 2 | 2 | Details |
| Various Alimentary Tract and Metabolism Products | Not Available | 25 | 221 | Details |
| Various Diagnostic Radiopharmaceuticals | Not Available | 2 | 0 | Details |
| Various Pain Palliation Radiopharmaceuticals | Not Available | 2 | 6 | Details |
| Various Therapeutic Radiopharmaceuticals | Not Available | 5 | 10 | Details |
| Vascular Endothelial Growth Factor A | Not Available | 1 | 2 | Details |
| Vascular Endothelial Growth Factor Inhibitor | Not Available | 4 | 14 | Details |
| Vascular Endothelial Growth Factor Inhibitors | Not Available | 3 | 13 | Details |
| Vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitors | Not Available | 4 | 44 | Details |
| Vascular Endothelial Growth Factor Receptor 2 Antagonist | Not Available | 1 | 1 | Details |
| Vascular Endothelial Growth Factor Receptor-2, antagonists & inhibitors | Not Available | 3 | 7 | Details |
| Vascular Endothelial Growth Factor-directed Antibody | Not Available | 0 | 0 | Details |
| Vascular Endothelial Growth Factor-directed Antibody Interactions | Not Available | 1 | 9 | Details |
| Vascular Endothelial Growth Factors, antagonists & inhibitors | Not Available | 1 | 1 | Details |
| Vascular Sclerosing Activity | Not Available | 2 | 3 | Details |
| Vasoactive Intestinal Peptide, antagonists & inhibitors | Not Available | 1 | 2 | Details |
| Vasoconstriction | Not Available | 3 | 20 | Details |
| Vasoconstrictor Agents | Drugs used to cause constriction of the blood vessels. | 38 | 249 | Details |
| Vasodilating Agents | Drugs used to cause dilation of the blood vessels. | 203 | 1584 | Details |