| Breast Neoplasms | Not Available | 2 | 10 | Details |
| Bretylium Compounds | Benzylammonium compounds with the formula Br-phenyl-CN+R3 that include BRETYLIUM TOSYLATE. | 1 | 3 | Details |
| Bridged-Ring Compounds | A broad class of substances containing carbon and its derivatives. Many of these chemic... more | 47 | 122 | Details |
| Bromobenzoates | Benzoic acid or benzoic acid esters substituted with one or more bromine atoms. | 1 | 10 | Details |
| Bronchoconstrictor Agents | Agents causing the narrowing of the lumen of a bronchus or bronchiole. | 2 | 7 | Details |
| Bronchodilator Agents | Agents that cause an increase in the expansion of a bronchus or bronchial tubes. | 61 | 365 | Details |
| Brucea | Not Available | 0 | 0 | Details |
| Bruton's tyrosine kinase (BTK) inhibitors | Not Available | 7 | 65 | Details |
| Bruton's Tyrosine Kinase Inhibitors | Not Available | 2 | 38 | Details |
| BSEP/ABCB11 inducers | Not Available | 9 | 202 | Details |
| BSEP/ABCB11 Inhibitors | Not Available | 57 | 963 | Details |
| BSEP/ABCB11 Substrates | Not Available | 76 | 1234 | Details |
| BSEP/ABCB11 Substrates with a Narrow Therapeutic Index | Not Available | 8 | 151 | Details |
| Bufanolides | Cyclopentanophenanthrenes with a 6-membered lactone ring attached at the 17-position an... more | 1 | 1 | Details |
| Buffers | A chemical system that functions to control the levels of specific ions in solution. Wh... more | 8 | 64 | Details |
| Bulk-Forming Laxatives | Not Available | 7 | 3 | Details |
| Bunolol | A nonselective beta-adrenoceptor antagonist used in the treatment of glaucoma. | 1 | 3 | Details |
| Burseraceae | A plant family of the order Sapindales, subclass Rosidae, class Magnoliopsida. They are... more | 1 | 4 | Details |
| Butanes | Four-carbon alkanes with the formula C4H10. | 9 | 24 | Details |
| Butanols | Isomeric forms and derivatives of butanol (C4H9OH). | 3 | 10 | Details |
| Butanones | Derivatives of butanone, also known as methyl ethyl ketone (with structural formula CH3... more | 2 | 12 | Details |
| Butylene Glycols | 4-carbon straight chain aliphatic hydrocarbons substituted with two hydroxyl groups. Th... more | 2 | 12 | Details |
| Butylpyrazolidines | Not Available | 5 | 25 | Details |
| Butyrates | 4-carbon acids, salts, and derivatives of BUTYRIC ACID. | 51 | 185 | Details |
| Butyrophenone Derivatives | Not Available | 10 | 64 | Details |