| Agents that produce neuromuscular block (indirect) | In this category, it is included all agents that induce neuromuscular block as a second... more | 71 | 286 | Details |
| Agents that reduce seizure threshold | Not Available | 119 | 1104 | Details |
| Agents to Treat Airway Disease | Not Available | 33 | 213 | Details |
| Agents used to treat hypothyroidism | Agents used to treat hypothyroidism or underactive thyroid gland. | 6 | 78 | Details |
| Agrochemicals | Chemicals used in agriculture. These include pesticides, fumigants, fertilizers, plant ... more | 65 | 99 | Details |
| Air Pollutants | Air pollutants which affect environmental conditions. | 4 | 1 | Details |
| Air Pollutants, Occupational | Toxic air-borne matter related to work performed. They are usually produced by the spec... more | 1 | 1 | Details |
| Ajmaline and derivatives | An alkaloid found in the root of RAUWOLFIA SERPENTINA, among other plant sources. It is... more | 1 | 2 | Details |
| Alanine | A non-essential amino acid that occurs in high levels in its free state in plasma. It i... more | 11 | 23 | Details |
| Alarmins | A structurally diverse group of endogenous molecules that includes the HMGB1 PROTEIN; S... more | 0 | 0 | Details |
| Albumins | Water-soluble proteins found in egg whites, blood, lymph, and other tissues and fluids.... more | 10 | 21 | Details |
| Alcohol Dehydrogenase, antagonists & inhibitors | Not Available | 5 | 7 | Details |
| Alcohol Deterrents | Substances interfering with the metabolism of ethyl alcohol, causing unpleasant side ef... more | 5 | 17 | Details |
| Alcohol Oxidoreductases | A subclass of enzymes which includes all dehydrogenases acting on primary and secondary... more | 1 | 0 | Details |
| Alcohols | Alkyl compounds containing a hydroxyl group. They are classified according to relation ... more | 328 | 820 | Details |
| Aldehyde Dehydrogenase Inhibitor | Not Available | 1 | 6 | Details |
| Aldehyde Dehydrogenase, antagonists & inhibitors | Not Available | 1 | 45 | Details |
| Aldehyde Oxidoreductases | Oxidoreductases that are specific for ALDEHYDES. | 1 | 0 | Details |
| Aldehyde Reductase, antagonists & inhibitors | Not Available | 9 | 12 | Details |
| Aldehydes | Organic compounds containing a carbonyl group in the form -CHO. | 14 | 11 | Details |
| Aldose Reductase Inhibitors | Not Available | 2 | 5 | Details |
| Aldosterone antagonists, spironolactone derivatives | Not Available | 0 | 0 | Details |
| Aldosterone, metabolism | Not Available | 0 | 0 | Details |
| Alfa Interferons | Not Available | 7 | 24 | Details |
| Algestone | A synthetic progestational dihydroxy derivative of PROGESTERONE. Its acetonide possesse... more | 1 | 0 | Details |