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Details for Patent: 5,344,658
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» See Plans and PricingSummary 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 |
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| >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 | Start Trial | |||
| Australia | 5787490 | Start Trial | |||
| Australia | 637110 | Start Trial | |||
| Canada | 2019944 | Start Trial | |||
| Germany | 69011786 | Start Trial | |||
| Denmark | 0415522 | Start Trial | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
