| Topoisomerase 1 (TOP1) inhibitors | Not Available | 4 | 22 | Details |
| Topoisomerase I Inhibitors | Compounds that inhibit the activity of DNA TOPOISOMERASE I. | 8 | 29 | Details |
| Topoisomerase II Inhibitors | Compounds that inhibit the activity of DNA TOPOISOMERASE II. Included in this category ... more | 46 | 234 | Details |
| Topoisomerase Inhibitors | Compounds that inhibit the activity of DNA TOPOISOMERASES. | 59 | 282 | Details |
| Toxic Actions | A broad category of chemical actions with harmful or deadly effect on living organisms. | 222 | 747 | Details |
| Toxiferine | A curare alkaloid that is a very potent competitive nicotinic antagonist at the neuromu... more | 1 | 0 | Details |
| Toxins | Not Available | 0 | 0 | Details |
| Toxins, Biological | Specific, characterizable, poisonous chemicals, often PROTEINS, with specific biologica... more | 39 | 53 | Details |
| Toxoids | Preparations of pathogenic organisms or their derivatives made nontoxic and intended fo... more | 2 | 0 | Details |
| Trace Elements | A group of chemical elements that are needed in minute quantities for the proper growth... more | 16 | 345 | Details |
| Tracheophyta | A subset of plants bearing a vascular system. Examples are ferns and seed-bearing species. | 51 | 39 | Details |
| Tranquilizing Agents | A traditional grouping of drugs said to have a soothing or calming effect on mood, thou... more | 123 | 1032 | Details |
| Transaminases, antagonists & inhibitors | Not Available | 1 | 2 | Details |
| Transferases | Transferases are enzymes transferring a group, for example, the methyl group or a glyco... more | 11 | 6 | Details |
| Transferrins | A group of iron-binding proteins that tightly bind two ferrate ions along with two carb... more | 2 | 0 | Details |
| Transforming Growth Factor beta | A factor synthesized in a wide variety of tissues. It acts synergistically with TGF-alp... more | 1 | 0 | Details |
| Transglutaminases | Transglutaminases catalyze cross-linking of proteins at a GLUTAMINE in one chain with L... more | 1 | 0 | Details |
| Transient Receptor Potential Channels | A broad group of eukaryotic six-transmembrane cation channels that are classified by se... more | 1 | 0 | Details |
| Transition Elements | Elements with partially filled d orbitals. They constitute groups 3-12 of the periodic ... more | 40 | 330 | Details |
| Transthyretin Stabilizers | Not Available | 1 | 4 | Details |
| Transthyretin-directed RNA Interaction | Not Available | 3 | 6 | Details |
| Trastuzumab | A humanized monoclonal antibody against the ERBB-2 RECEPTOR (HER2). As an ANTINEOPLASTI... more | 2 | 5 | Details |
| Treatments for Ebola Virus Disease | Not Available | 4 | 4 | Details |
| Treatments for Hepatitis C | Not Available | 15 | 118 | Details |
| Trefoil Factors | A family of small peptides expressed primarily by MUCOUS MEMBRANE EPITHELIAL CELLS in v... more | 1 | 0 | Details |