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CARRIERS, FORMULATIONS, METHODS FOR FORMULATING UNSTABLE ACTIVE AGENTS FOR EXTERNAL APPLICATION AND USES THEREOF

  • US 20100310476A1
  • Filed: 06/07/2010
  • Published: 12/09/2010
  • Est. Priority Date: 12/07/2007
  • Status: Active Grant
First Claim
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1. A topical tetracycline antibiotic composition comprising a foamable pharmaceutical composition and a propellant, the foamable pharmaceutical composition comprising:

  • a) about 0.1% to about 10% by weight of a tetracycline antibiotic;

    b) about 60% to about 95% by weight of;

    at least one oily emollient;

    at least one oil, wherein the oil is a liquid hydrocarbon-based oil;

    ora combination of at least one oily emollient and at least one oil;

    c) about 0.01% to about 15% by weight of at least one surfactant, wherein the surface active agent is an ester of a C8-C24 saturated hydrocarbon;

    d) optionally 0.01% to about 10% by weight of at least one foam adjuvant, wherein the foam adjuvant is a 14C to 18C fatty alcohol; and

    wherein each component is tetracycline-compatible;

    wherein the composition is substantially non-aqueous;

    wherein the tetracycline antibiotic is chemically stable in the foamable pharmaceutical composition when stored for 72 hours at about at least 25°

    C. after mixing with the pharmaceutical composition; and

    wherein the weight ratio of the foamable pharmaceutical composition to the propellant is about 100;

    5 to about 100;

    35.

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