| Antivirals, benzoxazinone derivatives | Not Available | 0 | 0 | Details |
| Antivirals, Intercellular adhesion molecule 1 derivatives | Not Available | 0 | 0 | Details |
| Antivirals, pyridine derivatives | Not Available | 0 | 0 | Details |
| Antivirals, zidovudine derivatives | Not Available | 0 | 0 | Details |
| Antracen Derivatives | Not Available | 1 | 3 | Details |
| Anxiolytics, buspirone derivatives | Not Available | 0 | 0 | Details |
| Anxiolytics, pyrazolopyrimidine derivatives | Not Available | 0 | 0 | Details |
| AP2 inhibitors | Not Available | 0 | 0 | Details |
| Apatites | A group of phosphate minerals that includes ten mineral species and has the general for... more | 1 | 54 | Details |
| Apiaceae | A plant genus of the family APIACEAE that contains saposhnikovans, a type of POLYSACCHA... more | 3 | 8 | Details |
| Apnea | Not Available | 0 | 0 | Details |
| APOC-III-directed RNA Interaction | Not Available | 2 | 3 | Details |
| Apolipoprotein B-100 Synthesis Inhibitor | Not Available | 1 | 2 | Details |
| Apolipoproteins | Protein components on the surface of LIPOPROTEINS. They form a layer surrounding the hy... more | 1 | 0 | Details |
| Apolipoproteins A | Structural proteins of the alpha-lipoproteins (HIGH DENSITY LIPOPROTEINS), including AP... more | 1 | 0 | Details |
| Apoproteins | The protein components of a number of complexes, such as enzymes (APOENZYMES), ferritin... more | 1 | 0 | Details |
| Apoptosis | Not Available | 0 | 0 | Details |
| Aporphines | Dibenzoquinolines derived in plants from (S)-reticuline (BENZYLISOQUINOLINES). | 1 | 27 | Details |
| Appetite Depressants | Agents that are used to suppress appetite. | 9 | 32 | Details |
| Appetite Stimulants | Agents that are used to stimulate appetite. These drugs are frequently used to treat an... more | 2 | 5 | Details |
| Appetite Suppression | Not Available | 6 | 42 | Details |
| Approved Treatments for COVID-19 | Treatments that have been approved for the indication of treating COVID-19 infections | 8 | 43 | Details |
| Aprepitant and Prodrugs | Not Available | 2 | 7 | Details |
| Aptamers, Nucleotide | Not Available | 3 | 7 | Details |
| Arabinofuranosyl Derivatives | Not Available | 0 | 0 | Details |