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Stabilization of paricalcitol using chlorobutyl or chlorinated butyl stoppers

  • US 20070166187A1
  • Filed: 01/18/2006
  • Published: 07/19/2007
  • Est. Priority Date: 01/18/2006
  • Status: Abandoned Application
First Claim
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1. A method of preventing the decomposition of a pharmaceutical comprising the step of storing the pharmaceutical in a glass vial sealed with a stopper comprising a halogenated butyl polymer selected from the group consisting of chlorobutyl, chlorinated butyl, fluorobutyl and fluorinated butyl for a time and under conditions sufficient to prevent said decomposition.

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