| Complement Inactivator Proteins | Serum proteins that negatively regulate the cascade process of COMPLEMENT ACTIVATION. U... more | 5 | 17 | Details |
| Complement receptors | Not Available | 0 | 0 | Details |
| Complement System Proteins | Serum glycoproteins participating in the host defense mechanism of COMPLEMENT ACTIVATIO... more | 2 | 14 | Details |
| Complex Mixtures | Mixtures of many components in inexact proportions, usually natural, such as PLANT EXTR... more | 228 | 181 | Details |
| Compounds used in a research, industrial, or household setting | Uses of chemicals in a research, industrial, or household setting, excluding pharmacolo... more | 724 | 2235 | Details |
| COMT Inhibitors | Compounds and drugs that inhibit or block the activity of CATECHOL O-METHYLTRANSFERASE ... more | 10 | 76 | Details |
| COMT Substrates | Not Available | 15 | 304 | Details |
| Condiments | Not Available | 2 | 0 | Details |
| Connective Tissue Cells | A group of cells that includes FIBROBLASTS, cartilage cells, ADIPOCYTES, smooth muscle ... more | 1 | 0 | Details |
| Conotoxins | Peptide neurotoxins from the marine fish-hunting snails of the genus CONUS. They contai... more | 2 | 2 | Details |
| Contact Laxatives | Not Available | 9 | 13 | Details |
| Contraceptive Agents, Female | Chemical substances or agents with contraceptive activity in females. Use for female co... more | 40 | 303 | Details |
| Contraceptive Agents, Hormonal | Contraceptive agents that act on the ENDOCRINE SYSTEM. | 34 | 242 | Details |
| Contraceptive Agents, Male | Chemical substances or agents with contraceptive activity in males. Use for male contra... more | 9 | 70 | Details |
| Contraceptive Devices, Female | Not Available | 1 | 4 | Details |
| Contraceptives, Oral | Compounds, usually hormonal, taken orally in order to block ovulation and prevent the o... more | 30 | 188 | Details |
| Contraceptives, Oral, Hormonal | Oral contraceptives which owe their effectiveness to hormonal preparations. | 17 | 95 | Details |
| Contraceptives, Oral, Synthetic | Oral contraceptives which owe their effectiveness to synthetic preparations. | 18 | 92 | Details |
| Contraceptives, Postcoital | Contraceptive substances to be used after COITUS. These agents include high doses of es... more | 8 | 82 | Details |
| Contrast Media | Substances used to allow enhanced visualization of tissues. | 70 | 36 | Details |
| Convulsants | Substances that act in the brain stem or spinal cord to produce tonic or clonic convuls... more | 8 | 11 | Details |
| Coordination Complexes | Neutral or negatively charged ligands bonded to metal cations or neutral atoms. The num... more | 12 | 47 | Details |
| Copper Absorption Inhibitor | Not Available | 1 | 0 | Details |
| Copper Chelator | Not Available | 1 | 2 | Details |
| Copper Radioisotopes | Not Available | 1 | 1 | Details |