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Brand names,
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Analogs
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Brand Names Mixture
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Chemical_Formula
C9H9Cl2N3O
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RX_link
http://www.rxlist.com/cgi/generic3/guanfacine.htm
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fda sheet
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msds (material safety sheet)
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Synthesis Reference
J. B. Bream, C.W. Coward et al.; U.S. Pat. 3,632,645 (1972)
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Molecular Weight
246.093 g/mol
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Melting Point
225-227 oC
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H2O Solubility
1892 mg/L
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State
Solid
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LogP
2.464
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Dosage Forms
Tablet (oral)
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Indication
For use in the management of hypertension.
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Pharmacology
Similar to clonidine, guanfacine is a centrally-acting, alpha(2)-adrenergic receptor agonist used alone or in combination with other drugs for the treatment of hypertension.
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Absorption
Rapid and complete, with an oral bioavailability of approximately 80%.
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side effects and Toxicity
Symptoms of overdose include drowsiness, lethargy, bradycardia and hypotension. LD50=165mg/kg (orally in mice)
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Patient Information
Patients who receive guanfacine should be advised to exercise caution when operating dangerous machinery or
driving motor vehicles until it is determined that they do not become drowsy or dizzy from the medication. Patients
should be warned that their tolerance for alcohol and other CNS depressants may be diminished. Patients should be
advised not to discontinue therapy abruptly.
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Organisms Affected
Humans and other mammals