| Collagenases | Enzymes that catalyze the degradation of collagen by acting on the peptide bonds. | 2 | 3 | Details |
| Colloids | Two-phase systems in which one is uniformly dispersed in another as particles small eno... more | 4 | 5 | Details |
| Colonic Neoplasms | Not Available | 0 | 0 | Details |
| Colony Stimulating Factor-1 Receptor Blocker | Not Available | 1 | 1 | Details |
| Colony-Stimulating Factors | Glycoproteins found in a subfraction of normal mammalian plasma and urine. They stimula... more | 24 | 42 | Details |
| Coloring Agents | Coloring agents that are INORGANIC CHEMICALS. | 44 | 143 | Details |
| Colouring Agents | Not Available | 2 | 15 | Details |
| Combination Contraceptives (with Estrogen and derivatives) | Progestin contraceptives used in combination with estrogen derivatives, usually with Et... more | 21 | 114 | Details |
| Combined Inhibitors of Serotonin/Norepinephrine Reuptake | Not Available | 27 | 458 | Details |
| Combretum | Not Available | 1 | 1 | Details |
| Commiphora | Not Available | 1 | 4 | Details |
| Common Cold, drug therapy | Not Available | 1 | 1 | Details |
| Complement 5a Receptor Antagonist | Not Available | 1 | 6 | Details |
| Complement C1 Inactivator Proteins | Serum proteins that inhibit, antagonize, or inactivate COMPLEMENT C1 or its subunits. | 2 | 15 | Details |
| Complement C5 inhibitors | Not Available | 3 | 3 | Details |
| Complement Factor B Inhibitor | Not Available | 1 | 8 | Details |
| Complement Factor D Inhibitor | Not Available | 1 | 3 | Details |
| Complement Inactivating Agents | Compounds that negatively regulate the cascade process of COMPLEMENT ACTIVATION. Uncont... more | 17 | 50 | Details |
| Complement Inactivator Proteins | Serum proteins that negatively regulate the cascade process of COMPLEMENT ACTIVATION. U... more | 5 | 18 | Details |
| Complement receptors | Not Available | 0 | 0 | Details |
| Complement System Proteins | Serum glycoproteins participating in the host defense mechanism of COMPLEMENT ACTIVATIO... more | 2 | 15 | Details |
| Complex Mixtures | Mixtures of many components in inexact proportions, usually natural, such as PLANT EXTR... more | 251 | 439 | Details |
| Compounds used in a research, industrial, or household setting | Uses of chemicals in a research, industrial, or household setting, excluding pharmacolo... more | 756 | 3090 | Details |
| COMT Inhibitors | Compounds and drugs that inhibit or block the activity of CATECHOL O-METHYLTRANSFERASE ... more | 12 | 85 | Details |
| COMT Substrates | Not Available | 20 | 346 | Details |