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Details for Patent: 5,344,658

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Summary for Patent: 5,344,658

Title:	Process and composition using ondansetron
Abstract:	The invention relates to a process for reducing the crystal size of ondansetron hydrochloride dihydrate produced by crystallisation from solvent to a size which is suitable for effective distribution in a tablet blend, in particular 100% less that 250 .mu.m. The ondansetron hydrochloride dihydrate is desolvated by drying at elevated temperature and reduced or atmospheric pressure and is then rehydrated.
Inventor(s):	Collin; David T. (Ware, GB2)
Assignee:	Glaxo Group Limited (London, GB2)
Application Number:	08/005,736
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 5,344,658
Patent Claim Types: see list of patent claims	Compound; Dosage form; Process; Composition;

Drugs Protected by US Patent 5,344,658

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: 5,344,658

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	89148043	Jun 28, 1989

International Family Members for US Patent 5,344,658

Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	110380
Australia	5787490
Australia	637110
Canada	2019944