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Details for Patent: 5,344,658
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
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Patent Submitted |
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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 | Patent Submitted |
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 | Document Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Canada | 2019944 | ➤ Sign Up | |||
Germany | 69011786 | ➤ Sign Up | |||
Denmark | 0415522 | ➤ Sign Up | |||
European Patent Office | 0415522 | ➤ Sign Up | |||
Country | Document Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |