| Class Ia Phosphatidylinositol 3-Kinase, antagonists & inhibitors | Not Available | 3 | 15 | Details |
| Class IV Antiarrythmics | Not Available | 0 | 0 | Details |
| Classical Complement Pathway Inhibitor | Not Available | 1 | 1 | Details |
| Claudin 18.2-directed Cytolytic Antibody | Not Available | 1 | 1 | Details |
| Clofibric Acid | An antilipemic agent that is the biologically active metabolite of CLOFIBRATE. | 6 | 9 | Details |
| Clomiphene | A triphenyl ethylene stilbene derivative which is an estrogen agonist or antagonist dep... more | 2 | 6 | Details |
| Clonidine derivatives | Not Available | 0 | 0 | Details |
| Clusiaceae | The mangosteen plant family (sometimes classified as Guttiferae; also known as Hyperica... more | 1 | 5 | Details |
| Coagulants | Agents that cause clotting. | 36 | 124 | Details |
| Cobalt Isotopes | Stable cobalt atoms that have the same atomic number as the element cobalt, but differ ... more | 1 | 1 | Details |
| Cocaine, antagonists & inhibitors | Not Available | 1 | 17 | Details |
| Coccidiostats | Agents useful in the treatment or prevention of COCCIDIOSIS in man or animals. | 16 | 26 | Details |
| Cocos | Not Available | 1 | 0 | Details |
| Coenzyme A, biosynthesis | Not Available | 1 | 46 | Details |
| Coenzymes | Small molecules that are required for the catalytic function of ENZYMES. Many VITAMINS ... more | 68 | 680 | Details |
| Coformycin | A ribonucleoside antibiotic synergist and adenosine deaminase inhibitor isolated from N... more | 1 | 1 | Details |
| Cognition | Not Available | 1 | 0 | Details |
| Cognitive enhancing drugs | Not Available | 0 | 0 | Details |
| Coix | Not Available | 0 | 0 | Details |
| Colchicine Derivatives | Not Available | 2 | 6 | Details |
| Colitis, Ulcerative | Not Available | 2 | 11 | Details |
| Colitis, Ulcerative, drug therapy | Not Available | 2 | 6 | Details |
| Collagen | A polypeptide substance comprising about one third of the total protein in mammalian or... more | 2 | 7 | Details |
| Collagen Type XVIII | A non-fibrillar collagen found in BASEMENT MEMBRANE. The C-terminal end of the alpha1 c... more | 2 | 7 | Details |
| Collagen-specific Enzyme | Not Available | 1 | 3 | Details |