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QuickView for arsenic trioxide (compound)


PubChem
Name: arsenic trioxide
PubChem Compound ID: 11148325
Molecular formula: As2O3
Molecular weight: 199.843 g/mol
DrugBank
Identification
Name: arsenic trioxide
Name (isomeric): DB01169
Drug Type: small molecule
Synonyms:
White Arsenic; Arsenic Trioxide [UN1561] [Poison]; Arsenous Acid; Diarsenic Trioxide; Arsentrioxide; Arsenous Oxide; Arsenic Sesquioxide; Acide Arsenieux [French]; Arsenious Trioxide; Arsenicum Album.
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Brand: Claudelite, Arsodent, Arsenite, Arsenolite, Claudetite, Trisenox
Category: Antineoplastic Agents, Homeopathic Agents
CAS number: 1327-53-3
Pharmacology
Indication: For induction of remission and consolidation in patients with acute promyelocytic leukemia (APL), and whose APL is characterized by the presence of the t(15;17) translocation or PML/RAR-alpha gene expression
Pharmacology: Arsenic Trioxide is indicated for induction of remission and consolidation in patients with acute promyelocytic leukemia (APL) who are refractory to, or have relapsed from, retinoid and anthracycline chemotherapy.
Mechanism of Action:
The mechanism of action of Arsenic Trioxide is not completely understood. Arsenic trioxide causes morphological changes and DNA fragmentation characteristic of apoptosis in NB4 human promyelocytic leukemia cells in vitro. Arsenic trioxide also causes damage or degradation of the fusion protein PML/RAR-alpha. It is suspected that arsenic trio...
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Protein binding: 75% bound
Biotransformation: The metabolism of arsenic trioxide involves reduction of pentavalent arsenic to trivalent arsenic by arsenate reductase and methylation of trivalent arsenic to monomethylarsonic acid and monomethylarsonic acid to dimethylarsinic acid by methyltransferases. The main site of methylation reactions appears to be the liver. Arsenic is stored mainly in liver, kidney, heart, lung, hair and nails.
Route of elimination: Trivalent arsenic is mostly methylated in humans and excreted in urine.
Toxicity: Symptoms of overdose include convulsions, muscle weakness and confusion.
Affected organisms: Humans and other mammals
Interactions
Drug interaction:
TacrolimusAdditive QTc-prolongation may occur increasing the risk of serious ventricular arrhythmias. Concomitant therapy should be used with caution.
LumefantrineAdditive QTc-prolongation may occur. Concomitant therapy should be avoided.
ThiothixeneMay cause additive QTc-prolonging effects. Increased risk of ventricular arrhythmias. Consider alternate therapy. Thorough risk:benefit assessment is required prior to co-administration.
VorinostatAdditive QTc prolongation may occur. Consider alternate therapy or monitor for QTc prolongation as this can lead to Torsade de Pointes (TdP).
ToremifeneAdditive QTc-prolongation may occur, increasing the risk of serious ventricular arrhythmias. Consider alternate therapy. A thorough risk:benefit assessment is required prior to co-administration.
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