| Selective Estrogen Receptor Modulators | A structurally diverse group of compounds distinguished from ESTROGENS by their ability... more | 12 | 107 | Details |
| Selective Immunosuppressants | Not Available | 52 | 275 | Details |
| Selective Progesterone Receptor Modulators | Not Available | 1 | 7 | Details |
| Selective Serotonin 5-HT1 Receptor Agonists | Not Available | 7 | 60 | Details |
| Selective Serotonin Agonists | Not Available | 7 | 60 | Details |
| Selective Serotonin Reuptake Inhibitors | Selective serotonin re-uptake inhibitors or serotonin-specific reuptake inhibitors (SSR... more | 20 | 191 | Details |
| Selective T Cell Costimulation Blocker | Not Available | 1 | 3 | Details |
| Selective T Cell Costimulation Modulator | Not Available | 1 | 2 | Details |
| Selenium Compounds | Inorganic compounds that contain selenium as an integral part of the molecule. | 24 | 31 | Details |
| Selenium Radioisotopes | Not Available | 0 | 0 | Details |
| Semi-synthetic Opioids | Not Available | 7 | 35 | Details |
| Semicarbazides | Derivatives of UREA where one of the amino groups is replaced with hydrazine. | 7 | 8 | Details |
| Semicarbazones | A class of organic compounds that are derivatives of imines formed by condensation reac... more | 7 | 8 | Details |
| Semifluorinated Alkane | Not Available | 1 | 0 | Details |
| Seminal Plasma Proteins | Proteins found in SEMEN. Major seminal plasma proteins are secretory proteins from the ... more | 2 | 3 | Details |
| Seminal Proteins | Proteins found in semen. Seminal proteins are composed of SEMINAL PLASMA PROTEINS and S... more | 3 | 5 | Details |
| Sensitizers Used in Photodynamic/radiation Therapy | Not Available | 6 | 15 | Details |
| Sensory Organs | Not Available | 200 | 1244 | Details |
| Sensory System Agents | Drugs that act on neuronal sensory receptors resulting in an increase, decrease, or mod... more | 317 | 1825 | Details |
| Sequestering Agents | Compounds that bind to and reduce the biological availability of a chemical or pharmace... more | 41 | 174 | Details |
| Serenoa | Not Available | 0 | 0 | Details |
| Serine Endopeptidases | Any member of the group of ENDOPEPTIDASES containing at the active site a serine residu... more | 34 | 88 | Details |
| Serine Protease Inhibitors | Exogenous or endogenous compounds which inhibit SERINE ENDOPEPTIDASES. | 40 | 138 | Details |
| Serine Proteases | Peptide hydrolases that contain at the active site a SERINE residue involved in catalysis. | 35 | 104 | Details |
| Serotonergic Drugs Shown to Increase Risk of Serotonin Syndrome | Source: Volpi-abadie J, Kaye AM, Kaye AD. Serotonin syndrome. Ochsner J. 2013;13(4):533... more | 248 | 2323 | Details |