Urea Foam
AssigneeQuinnova Pharmaceuticals, Inc.
InventorMats Silvander
Life of this patent
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Abstract
Provided, among other things, is a delivery module for a non-greasy, water-based urea composition comprising: an aerosol delivery device; within the aerosol delivery device, the urea composition comprising 20% or more urea by weight, non-greasy lipophilic component(s), and a frothing agent, the urea composition having a viscosity low enough to support aerosol delivery, and the urea composition effective to form a foam upon propellant-driven aerosol delivery; and within the aerosol delivery device, a propellant.
Claims20
A delivery module for a non-greasy, water-based urea composition
- comprising:
- an aerosol delivery device;
- within the aerosol delivery device, the urea composition comprising 20% or more urea by weight, non-greasy lipophilic component(s), and a frothing agent, the urea composition having a viscosity low enough to support aerosol delivery, and the urea composition effective to form a foam upon propellant-driven aerosol delivery;
- and
- within the aerosol delivery device, a propellant.
A urea composition comprising
- urea 20-50%;
- fatty acid(s) and/or analogous alkyl amine(s) 1-5%;
- hydrophilic polymer(s) 0.5-1.5%;
- titrant, as needed in amount effective to substantially neutralize the fatty acid(s) or alkyl amine(s);
- frothing agent 0.3-4%;
- and
- humectant 0.5-7%.
A method of treating dermatitis, psoriasis, xerosis, ichthyosis, eczema, keratosis, keratoderma, dry and rough skin, corns, calluses, damaged, or ingrown and devitalized nails comprising applying to affected skin a foamed, non-greasy, water-based urea composition comprising:
- 20% or more urea by weight, non-greasy lipophilic component(s), and a frothing agent, the urea composition having a viscosity low enough to support aerosol delivery, and the urea composition effective to form a foam upon propellant-driven aerosol delivery.
Dependencies are inferred from the claim text.