Name: | Doxazosin |
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PubChem Compound ID: | 3157 |
Description: | A prazosin-related compound that is a selective alpha-1-adrenergic blocker. |
Molecular formula: | C23H25N5O5 |
Molecular weight: | 451.475 g/mol |
Synonyms: |
Doxazosine [French]; 1-(4-Amino-6,7-Dimethoxy-2-quinazolinyl)-4-(1,4-benzodioxan-2-ylcarbonyl)piperazin; Doxazosin; ChemDiv2_005017; 77883-43-3; Prestwick0_000858; 74191-85-8; Doxazosinum [Latin]; Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-((2,3-dihydro-1,4-benzodioxin-2-yl)carbonyl)-; Doxazosina [Spanish].
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Name: | Doxazosin |
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Name (isomeric): | DB00590 |
Drug Type: | small molecule |
Description: | A prazosin-related compound that is a selective alpha-1-adrenergic blocker. |
Synonyms: |
Doxazosin mesilate; Doxazosin mesylate
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Brand: | Cardenalin, Cardular, Carduran, Alfadil, Cardura XL, Normothen, Diblocin, Supressin, Cardura-4, Cardura-2, Cardura, Cardura-1 |
Category: | Vasodilator Agents, Antineoplastic Agents, Alpha-adrenergic Blocking Agents, Antihyperplasia Agents, Adrenergic alpha-Antagonists, Antihypertensive Agents |
CAS number: | 74191-85-8 |
Indication: | For treatment and management of mild to moderate hypertension and urinary obstruction symptoms caused by BPH. |
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Pharmacology: |
Doxazosin is an alpha-adrenergic blocking agent used to treat hypertension and benign prostatic hyperplasia. Accordingly, Doxazosin is a selective inhibitor of the alpha1 subtype of alpha adrenergic receptors. In the human prostate, Doxazosin antagonizes phenylephrine (alpha1 agonist)-induced contractions, in vitro, and binds with high affin...
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Mechanism of Action: | Doxazosin acts by inhibiting the postsynaptic alpha(1)-adrenoceptors on vascular smooth muscle. This inhibits the vasoconstrictor effect of circulating and locally released catecholamines (epinephrine and norepinephrine), resulting in peripheral vasodilation. |
Absorption: | 65% |
Protein binding: | 98% |
Biotransformation: | Hepatic. |
Route of elimination: | On average only 4.8% of the dose was excreted as unchanged drug in the feces and only a trace of the total radioactivity in the urine was attributed to unchanged drug. |
Half Life: | 22 hours |
Toxicity: | Symptoms of overdose include hypotension. Oral LD50 is greater than 1000 mg/kg in mice and rats. |
Affected organisms: | Humans and other mammals |
Food interaction: |
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