Venclexta (Venetoclax) Mechanism of Action Potent, selective inhibitor of BCL‑2 – binds the BH3 domain of BCL‑2, displacing pro‑apoptotic proteins (BAX, BAK) and triggering mitochondrial outer‑membrane permeabilization. Overcomes anti‑apoptotic signaling in malignant B‑cell clones and AML blasts, restoring apoptotic priming that is otherwise suppressed in disease. Synergistic when combined with hypomethylating agents (decitabine) or with … Read more
Velcade Velcade® (generic name bortezomib) is a reversible, non‑competitive proteasome inhibitor approved for the treatment of plasma‑cell malignancies. The drug’s high specificity for the β5 subunit of the 26S proteasome has made it a cornerstone in modern hematology/oncology practice. Mechanism of Action Proteasome inhibition: Binds irreversibly to the chymotrypsin‑like (β5) subunit, blocking proteolysis of intracellular … Read more
Vasotec Vasotec is the brand name for lisinopril, a potent angiotensin‑converting enzyme (ACE) inhibitor used widely in cardiovascular therapy. — Mechanism of Action Inhibits ACE: Blocks the conversion of angiotensin I → angiotensin II, reducing a key vasoconstrictor. Decreases Aldosterone: Lower angiotensin II levels blunt mineralocorticoid-mediated sodium/water retention. Raises Bradykinin: Inhibition of ACE elevates bradykinin, … Read more
Vascepa Vascepa (icsapent ethyl) is a highly purified ethyl ester of eicosapentaenoic acid (EPA), classified as a fish‑oil derivative. It is indicated for triglyceride (TG) lowering in patients at high cardiovascular risk who inadequately respond to statins or other lipid‑lowering therapies. Mechanism of Action EPA incorporation into cell membranes → decreases lipogenesis and increases fatty … Read more
Varenicline Mechanism of Action Varenicline is a partial agonist at neural α4β2 nicotinic acetylcholine receptors (nAChRs), the primary binding sites for nicotine in the brain. By binding to these receptors, it reduces nicotine withdrawal symptoms (e.g., irritability, anxiety, increased appetite) and blocks nicotine’s reinforcing effects, decreasing craving and the rewarding experience of smoking. The drug’s … Read more
Vanos Vanos is a novel, once‑daily, oral pharmacologic agent approved for the management of moderate to severe plaque psoriasis and associated psoriatic arthritis. It is classified as a selective, covalent small‑molecule inhibitor of the interleukin‑23 (IL‑23) p19 subunit, providing targeted suppression of the IL‑23/Th17 inflammatory axis. — Mechanism of Action Vanos selectively binds to the … Read more
Vancomycin Vancomycin is a glycopeptide antibiotic that has become the cornerstone of therapy for many gram‑positive infections, especially those caused by methicillin‑resistant Staphylococcus aureus (MRSA). Mechanism of Action Inhibits bacterial cell‑wall synthesis by binding the D‑alanine‑D‑alanine (D‑Ala‑D‑Ala) terminus of the peptidoglycan precursor. This prevents cross‑linking of cell‑wall strands, resulting in bacteriostatic activity at lower concentrations … Read more
Vamorolone Vamorolone is a novel, orally‑administered, synthetic neuro‑steroid that selectively antagonizes the harmful, genomic actions of glucocorticoids while preserving anti‑inflammatory efficacy. — Mechanism of Action Vamorolone engages the glucocorticoid receptor (GR) but: Prevents GR‑mediated transcription of pro‑inflammatory genes (e.g., TNF‑α, IL‑6). Inhibits GR nuclear translocation, thereby reducing glucocorticoid‑induced catabolism. Exhibits minimal mineralocorticoid and neuro‑toxic activity, … Read more
Valtrex Valtrex (valacyclovir) is a prodrug of acyclovir, extensively used in the treatment and suppression of herpes simplex virus (HSV) and varicella‑zoster virus (VZV) infections. Mechanism of Action Cell‑entry: Valacyclovir is rapidly converted by intestinal haptocorrin to acyclovir. Viral inhibition: Acyclovir is phosphorylated by viral thymidine kinase to acyclovir monophosphate. Viral UL23 (HSV) or UL30 … Read more
Valtoco Valtoco (generic valproic acid 400 mg) is an FDA‑approved antiepileptic drug (AED) widely used for seizure control and bipolar mood stabilization. It is a versatile, high‑yield medication, especially useful when rapid seizure suppression is required. Mechanism of Action Valtoco exerts its anticonvulsant effect through several complementary pathways: Enhances inhibitory GABAergic transmission by inhibiting GABA transaminase … Read more