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Last Updated: April 19, 2024

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 Claim Types: see list of patent claims	Compound; Dosage form; Process; Composition;

Drugs Protected by US Patent 5,344,658

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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: 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

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	110380	⤷ Try a Trial
Australia	5787490	⤷ Try a Trial
Australia	637110	⤷ Try a Trial
Canada	2019944	⤷ Try a Trial
Germany	69011786	⤷ Try a Trial
Denmark	0415522	⤷ Try a Trial
European Patent Office	0415522	⤷ Try a Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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