Blincyto

Blincyto Blincyto (blinatumomab) is a bispecific T‑cell engager (BiTE™) that redirects patient T‑cells to target CD19‑positive B‑cell malignancies. It is indicated for relapsed or refractory B‑cell precursor acute lymphoblastic leukemia…

Bisoprolol

Bisoprolol Bisoprolol is a cardioselective β‑adrenergic antagonist commonly used for hypertension, chronic heart failure, and angina. Mechanism of Action Selective β1‑receptor blockade → ↓ sympathetic tone on cardiac myocytes and…

Bismuth Subsalicylate

Bismuth Subsalicylate Bismuth subsalicylate (BSS) is a poorly‑absorbed, topical anti‑inflammatory and antiseptic agent used primarily for acute gastrointestinal discomfort and as an adjunct in Helicobacter pylori eradication regimens. Mechanism of…

Bisacodyl

Bisacodyl Mechanism of Action Bisacodyl is a potent stimulant laxative. Its effectiveness stems from its lipophilicity, which permits rapid passage into the colon before it is metabolised. Once in the…

Biotin

Biotin Mechanism of Action Biotin (vitamin H, vitamin B₇) is a water‑soluble B‑vitamin that acts as a covalent cofactor (prosthetic group) for five key carboxylase enzymes: Pyruvate carboxylase Acetyl‑CoA carboxylase (fatty‑acid synthesis)…

Biktarvy

Biktarvy Biktarvy (bictegravir/emtricitabine/tenofovir alafenamide) is a once‑daily, single‑tablet antiretroviral regimen approved for the treatment of HIV‑1 infection in adults. It combines an integrase strand transfer inhibitor (INSTI) with two nucleoside reverse‑transcriptase…

Bicalutamide

Bicalutamide Bicalutamide is a non‑steroidal anti‑androgen (NSAA) used primarily in the treatment of hormone‑responsive prostate cancer. Mechanism of Action Selective androgen receptor (AR) antagonist: Bicalutamide competitively binds to the ligand‑binding…

Beyfortus

Beyfortus Beyfortus (nirsevimab) is a once‑monthly, subcutaneous monoclonal antibody that neutralizes syncytial virus (RSV) in high‑risk infants and children. Approved for use from birth to 12 months of age (and up…

Bevacizumab

Bevacizumab Bevacizumab (Avastin®) is a humanized monoclonal antibody that targets vascular endothelial growth factor‑A (VEGF‑A) to inhibit angiogenesis. Mechanism of Action VEGF‑A inhibition – Binds circulating VEGF‑A and placental growth…

Betaseron

Betaseron Betaseron (interferon‑β‑1a, recombinant human) is a disease‑modifying therapy approved for relapsing‑remitting multiple sclerosis (RRMS). It works by modulating the immune response, reducing CNS inflammation, and protecting axons. Mechanism of…