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QuickView for Conivaptan (compound)


PubChem
Name: conivaptan
PubChem Compound ID: 151171
Molecular formula: C32H26N4O2
Molecular weight: 498.575 g/mol
Synonyms:
(1,1'-Biphenyl)-2-carboxamide, N-(4-(4,5-dihydro-2-methylimidazo(4,5-d)(1)benzazepin-6(1H)-yl)carbonyl)phenyl)-; YM087; Conivaptan [INN]; Conivaptan; 210101-16-9
DrugBank
Identification
Name: conivaptan
Name (isomeric): DB00872
Drug Type: small molecule
Synonyms:
Conivaptan hydrochloride; YM-087; YM 087
Brand: Vaprisol
Category: Aquaresis promoters
CAS number: 210101-16-9
Pharmacology
Indication: For the treatment of euvolemic or hypervolemic hyponatremia (e.g. the syndrome of inappropriate secretion of antidiuretic hormone, or in the setting of hypothyroidism, adrenal insufficiency, pulmonary disorders, etc.) in hospitalized patients.
Pharmacology:
Conivaptan is a nonpeptide, dual antagonist of arginine vasopressin (AVP) V1A and V2 receptors. The level of AVP in circulating blood is critical for the regulation of water and electrolyte balance and is usually elevated in both euvolemic and hypervolemic hyponatremia. The AVP effect is mediated through V2 receptor...
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Mechanism of Action: Conivaptan is a dual AVP antagonist with nanomolar affinity for human arginine vasopressin V1A and V2 receptors in vitro. This antagonism occurs in the renal collecting ducts, resulting in aquaresis, or excretion of free water.
Protein binding: 99%
Biotransformation: CYP3A4 is the sole cytochrome P450 isozyme responsible for the metabolism of conivaptan. Four metabolites have been identified. The pharmacological activity of the metabolites at V1a and V2 receptors ranged from approximately 3-50% and 50-100% that of conivaptan, respectively.
Half Life: 5 hours
Toxicity: Although no data on overdosage in humans are available, conivaptan has been administered as a 20 mg loading dose on Day 1 followed by continuous infusion of 80 mg/day for 4 days in hyponatremia patients and up to 120 mg/day for 2 days in CHF patients. No new toxicities were identified at these higher doses, but adverse events related to the pharmacologic activity of conivaptan, e.g. hypotension and thirst, occurred more frequently at these higher doses.
Affected organisms: Humans and other mammals
Interactions
Drug interaction:
TeniposideThe strong CYP3A4 inhibitor, Conivaptan, may decrease the metabolism and clearance of Teniposide, a CYP3A4 substrate. Consider alternate therapy or monitor for changes in the therapeutic/adverse effects of Teniposide if Conivaptan is initiated, discontinued or dose changed.
TelithromycinCo-administration may result in altered plasma concentrations of Conivaptan and/or Telithromycin. Consider alternate therapy or monitor the therapeutic/adverse effects of both agents.
MethylprednisoloneCYP3A4 Inhibitors (Strong) may increase the serum concentration of Methylprednisolone. Consider methylprednisolone dose titration and/or adjustments in patients receiving strong CYP3A4 inhibitors (eg, azole antifungals, protease inhibitors) and monitor for increased steroid related adverse effects.
TamsulosinConivaptan, a CYP3A4 inhibitor, may decrease the metabolism and clearance of Tamsulosin, a CYP3A4 substrate. Monitor for changes in therapeutic/adverse effects of Tamsulosin if Conivaptan is initiated, discontinued, or dose changed.
BudesonideCYP3A4 Inhibitors (Strong) may increase the serum concentration of Budesonide (Systemic, Oral Inhalation). onsider reducing the oral budesonide dose when used together with a strong CYP3A4 inhibitor. This interaction is likely less severe with orally inhaled budesonide. Any patient receiving both budesonide and a strong CYP3A4 inhibitor should be monitored closely for signs/symptoms of corticosteroid excess.
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