| Adenosine, antagonists & inhibitors | Not Available | 1 | 7 | Details |
| Adenovirus Vaccines | Not Available | 2 | 0 | Details |
| Adenylyl Cyclase Inhibitors | Compounds that bind to and inhibit the action of ADENYLYL CYCLASES. | 1 | 0 | Details |
| Adipates | Derivatives of adipic acid. Included under this heading are a broad variety of acid for... more | 1 | 1 | Details |
| Adipokines | Polypeptides produced by the ADIPOCYTES. They include LEPTIN; ADIPONECTIN; RESISTIN; an... more | 2 | 2 | Details |
| Adjuvants | Not Available | 8 | 101 | Details |
| Adjuvants, Anesthesia | Agents that are administered in association with anesthetics to increase effectiveness,... more | 19 | 131 | Details |
| Adjuvants, Immunologic | Substances that augment, stimulate, activate, potentiate, or modulate the immune respon... more | 77 | 176 | Details |
| Adjuvants, Pharmaceutic | Agents that aid or increase the action of the principle drug (DRUG SYNERGISM) or that a... more | 1 | 32 | Details |
| Administration, Topical | Not Available | 2 | 32 | Details |
| Adoptive Transfer | Form of passive immunization where previously sensitized immunologic agents (cells or s... more | 1 | 1 | Details |
| ADP Ribose Transferases | Enzymes that transfer the ADP-RIBOSE group of NAD or NADP to proteins or other small mo... more | 2 | 3 | Details |
| Adrenal Cortex Hormones | Not Available | 173 | 1045 | Details |
| Adrenals | Not Available | 17 | 172 | Details |
| Adrenergic Agents | Drugs that act on adrenergic receptors or affect the life cycle of adrenergic transmitt... more | 169 | 921 | Details |
| Adrenergic Agonists | Drugs that bind to and activate adrenergic receptors. | 105 | 425 | Details |
| Adrenergic alpha-1 Receptor Agonists | Compounds that bind to and activate ADRENERGIC ALPHA-1 RECEPTORS. | 27 | 198 | Details |
| Adrenergic alpha-1 Receptor Antagonists | Drugs that bind to and block the activation of ADRENERGIC ALPHA-1 RECEPTORS. | 60 | 942 | Details |
| Adrenergic alpha-2 Receptor Agonists | Compounds that bind to and activate ADRENERGIC ALPHA-2 RECEPTORS. | 32 | 227 | Details |
| Adrenergic alpha-2 Receptor Antagonists | Drugs that bind to and block the activation of ADRENERGIC ALPHA-2 RECEPTORS. | 7 | 36 | Details |
| Adrenergic alpha-Agonists | Drugs that selectively bind to and activate alpha adrenergic receptors. | 53 | 294 | Details |
| Adrenergic alpha-Antagonists | Drugs that bind to but do not activate alpha-adrenergic receptors thereby blocking the ... more | 76 | 1011 | Details |
| Adrenergic and Dopaminergic Agents | Not Available | 26 | 123 | Details |
| Adrenergic Antagonists | Drugs that bind to but do not activate ADRENERGIC RECEPTORS. Adrenergic antagonists blo... more | 118 | 1173 | Details |
| Adrenergic beta-1 Receptor Agonists | Compounds that bind to and activate ADRENERGIC BETA-1 RECEPTORS. | 12 | 78 | Details |