| Arabinonucleosides | Nucleosides containing arabinose as their sugar moiety. | 14 | 43 | Details |
| Arabinonucleotides | Nucleotides containing arabinose as their sugar moiety. | 1 | 7 | Details |
| Arabinose | Not Available | 1 | 2 | Details |
| Arachidonic Acids | A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protopla... more | 4 | 20 | Details |
| Arachis | Not Available | 0 | 0 | Details |
| Araliaceae | A plant genus of the family ARALIACEAE that contains cussonosides or sieboldianosides (... more | 2 | 4 | Details |
| Arecaceae | The palm family of order Arecales, subclass Arecidae, class Liliopsida. | 1 | 5 | Details |
| Arginine | An essential amino acid that is physiologically active in the L-form. | 6 | 26 | Details |
| Arginine Vasopressin | The predominant form of mammalian antidiuretic hormone. It is a nonapeptide containing ... more | 2 | 11 | Details |
| Arginine Vasopressin, agonists | Not Available | 0 | 0 | Details |
| Arginine Vasopressin, analogs & derivatives | Not Available | 1 | 5 | Details |
| Arginine Vasopressin, antagonists & inhibitors | Not Available | 0 | 0 | Details |
| Arildone Derivatives | Not Available | 0 | 0 | Details |
| Aripiprazole and prodrugs | Not Available | 2 | 75 | Details |
| Aromatase | Not Available | 1 | 1 | Details |
| Aromatase Inhibitors | Compounds that inhibit AROMATASE in order to reduce production of estrogenic steroid ho... more | 11 | 34 | Details |
| Aromatic Amino Acid Decarboxylase Inhibitors | Compounds and drugs that block or inhibit the enzymatic action of AROMATIC AMINO ACID D... more | 1 | 1 | Details |
| Aromatic L-amino Acid Decarboxylase Inhibitors | Aromatic L-amino acid decarboxylase is the enzyme responsible for the conversion of L-D... more | 3 | 13 | Details |
| Arotinoid Derivatives | Not Available | 0 | 0 | Details |
| Arsenicals | Inorganic or organic compounds that contain arsenic. | 13 | 30 | Details |
| Artemisia | Not Available | 2 | 195 | Details |
| Artemisinin and derivatives | Not Available | 5 | 216 | Details |
| Artemisinins | A group of SESQUITERPENES and their analogs that contain a peroxide group (PEROXIDES) w... more | 2 | 16 | Details |
| Arteriolar Smooth Muscle, Agents Acting On | Not Available | 8 | 36 | Details |
| Arteriolar Vasodilation | Not Available | 2 | 8 | Details |