Lyophilized azithromycin formulation

  • US 20080221048A1
  • Filed: 03/27/2008
  • Published: 09/11/2008
  • Est. Priority Date: 03/17/2004
  • Status: Abandoned Application
First Claim
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1. A stable, sterile pharmaceutical formulation comprising lyophilized azithromycin, an acid and ethanol, wherein the ethanol is present in an amount from about 0.003% to about 3.0% by weight of the pharmaceutical formulation, and wherein said acid is selected from the group consisting of citric acid monohydrate, anhydrous citric acid, sodium citrate, hydrochloric acid, lactic acid, glycolic acid, acetic acid, phosphoric acid, and tartaric acid, and wherein said formulation further comprises a base selected from the group consisting of sodium hydroxide, potassium hydroxide, calcium hydroxide, aluminum hydroxide, and zinc hydroxide.

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