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phenoxybenzamine

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phenoxybenzamine Basic information
phenoxybenzamine Chemical Properties
Safety Information
  • ToxicityLD50 oral in rat: 2500mg/kg
phenoxybenzamine Usage And Synthesis
  • UsesAntihypertensive.
  • brand nameDibenzyline (WellSpring);Dibenzyran.
  • World Health Organization (WHO)Phenoxybenzamine, a long-acting alpha-adrenoreceptor antagonist, was introduced in 1953 and has been used in a variety of peripheral vascular disorders. In 1982 it was shown to have mutagenic activity and in 1985 it was found to be carcinogenic in the rat. Its approved use was subsequently restricted by several regulatory authorities and phenoxybenzamine is currently used to manage hypertensive episodes associated with phaeochromocytoma, as an adjunct to the short-term management of urinary retention due to neurogenic bladder, in the short-term treatment of benign prostatic hypertrophy in patients awaiting surgery, and in inoperable benign prostatic hypertrophy.
  • Safety ProfileConfirmed carcinogen with experimental carcinogenic and neoplastigenic data. Poison by intravenous and intracerebral routes. Moderately toxic by ingestion. Human reproductive effects by ingestion: spermatogenesis. Experimental reproductive effects. When heated to decomposition it emits very toxic fumes of Cland NOx.
  • Purification MethodsThe free base is crystallised from pet ether, and the HCl is crystallised from EtOH/diethyl ether. [Beilstein 12 IV 2204.]
phenoxybenzamine(59-96-1)Related Product Information
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