Stable epinephrine suspension formulation with high inhalation delivery efficiency

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United States of America Patent

PATENT NO 8367734
SERIAL NO

12776338

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Abstract

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A stable suspension aerosol formulation of epinephrine is suitable for administration through inhalation comprising a therapeutically effective amount of epinephrine, hydrofluorocarbon propellant, co-solvent, surfactant, and antioxidant. The suspension aerosol formulation further comprises [pre-] pre-micronized epinephrine suspended in an alcohol/surfactant solution with hydrofluoroalkane propellant. The suspension formulation provides a highly efficient delivery of drug microparticles into the respirable region of patients' lungs and has the following advantages: lower dosage requirement, minimum alcohol content, with less impurities generated during storage, improved efficacy and safety, and exhibits no ozone depleting potential compared to a formulation containing chlorofluorocarbon.

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Patent Owner(s)

Patent OwnerAddress
AMPHASTAR PHARMACEUTICALS INC11570 6TH STREET RANCHO CUCAMONGA CA 91730-6025

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Jianxin Norton, US 6 140
Luo, James Quincy, US 2 102
Luo, Mary Ziping Diamond Bar, US 17 686
Zhang, Jack Yongfeng Diamond Bar, US 29 572
Zhou, Rong Fullerton, US 133 3094

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