Methods for treating allergic disorders using optically pure (-) cetirizine

  • US 5,698,558 A
  • Filed: 01/27/1997
  • Issued: 12/16/1997
  • Est. Priority Date: 09/24/1992
  • Status: Expired due to Term
First Claim
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1. A method of treating the symptoms of seasonal and perennial allergic rhinitis in a human which comprises administering to a human in need of such symptomatic relief therapy an amount of (-) cetirizine, or a pharmaceutically acceptable salt thereof, substantially free of its (+) stereoisomer, said amount being sufficient to alleviate or palliate said allergic rhinitis.

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