| Brinzolamide Drug Metabolism |  | Metabolic | Brinzolamide |
| Brivaracetam Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Brivaracetam |
| Brivudine Action Pathway |  | Drug Action | Brivudine |
| Brolucizumab Action Pathway |  | Drug Action | Calcium / Brolucizumab |
| Bromazepam Action Pathway |  | Drug Action | Pyridoxal phosphate / Glutamic acid / ATP / Calcium / Magnesium cation / Bromazepam / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid |
| Bromfenac Action Pathway |  | Drug Action | Glutamic acid / Glutathione / Dinoprostone / Bromfenac / Calcium / Magnesium cation / Zinc / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Bromfenac NSAID Action Pathway |  | Drug Action | Glutathione / Dinoprostone / Bromfenac / Calcium / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Bromhexine Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Bromhexine |
| Bromocriptine Mechanism of Action Action Pathway |  | Drug Action | Pyridoxal phosphate / Tyrosine / Dopamine / Bromocriptine / Levodopa / Calcium / Iron / Cyclic adenosine monophosphate |
| Bromodiphenhydramine H1 Antihistamine Neurological Sleep Action Pathway |  | Drug Action | Pyridoxal phosphate / Histidine / Bromodiphenhydramine / Calcium |
| Bromodiphenhydramine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Bromodiphenhydramine / Calcium / Magnesium cation |
| Bromodiphenhydramine H1-Antihistamine Action |  | Drug Action | Bromodiphenhydramine / Calcium |
| Bromodiphenhydramine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Bromodiphenhydramine / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide |
| Bromodiphenhydramine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Bromodiphenhydramine / Calcium |
| Bromopride Dopamine Antagonist Action Pathway |  | Drug Action | Pyridoxal phosphate / Tyrosine / Sapropterin / Dopamine / Levodopa / Calcium / Iron / Bromopride |
| Bromothalonil Drug Metabolism |  | Metabolic | Bromothalonil |
| Bromotheophylline Drug Metabolism |  | Metabolic | Bromotheophylline |
| Brompheniramine Drug Metabolism |  | Metabolic | Brompheniramine |
| Brompheniramine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Brompheniramine / Calcium / Magnesium cation |
| Brompheniramine H1-Antihistamine Action |  | Drug Action | Brompheniramine / Calcium |
| Brompheniramine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Brompheniramine / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide |
| Brompheniramine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Brompheniramine / Calcium |
| Buclizine H1 Antihistamine Neurological Sleep Action Pathway |  | Drug Action | Pyridoxal phosphate / Histidine / Buclizine / Calcium |
| Buclizine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Buclizine / Calcium / Magnesium cation |
| Buclizine H1-Antihistamine Action |  | Drug Action | Buclizine / Calcium |