Details for Patent: 4,364,923

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Summary for Patent: 4,364,923

Title:	Chemical compounds
Abstract:	An antiinflammatory steroid exhibiting a tendency to crystal growth in suspension in aerosol propellants is contacted with a halogenated hydrocarbon to form a crystalline solvate, which, after removal of some or all of the propellant from the crystals, is reduced to a particle size permitting inhalation into the human bronchial system when dispersed as an aerosol, the micronised crystalline solvate not thereafter exhibiting crystal growth in the aerosol propellant. The solvate is a new composition of matter which has been characterized by I.R. spectra and the aerosol formulation prepared therefrom has valuable therapeutic properties, particularly in the treatment of asthma.
Inventor(s):	Cook; Peter B. (Standon, GB2), Hunt; John H. (Theydon Bois, GB2)
Assignee:	Allen & Hanburs Limited (London, GB2)
Application Number:	06/259,015
Patent Claim Types: see list of patent claims	Formulation; Compound; Device;

Drugs Protected by US Patent 4,364,923

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

Foreign Priority and PCT Information for Patent: 4,364,923

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	18421/72	Apr 20, 1972

International Family Members for US Patent 4,364,923

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