Details for Patent: 6,423,342
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Summary for Patent: 6,423,342
Title: | Process for the preparation of a solid pharmaceutical dosage form |
Abstract: | A process for the preparation of a solid pharmaceutical dosage form comprising a carrier and, as active ingredient, a compound which exists, in solution, in an equilibrium between a free acid or free base form and a salt form, and for which there is a difference in volatility between the free acid or free base form and the salt form. The process includes the steps of solidifying a mixture of the compound and carrier in a solvent, and subsequently removing the solvent from the solidified mixture. A pH modifier is added to the mixture prior to solidification to shift the equilibrium to favor the less volatile form of the active ingredient. |
Inventor(s): | Jordan; Andrew William (Swindon, GB), Saunders; Joy Elaine (Faringdon, GB), Kearney; Patrick (Swindon, GB) |
Assignee: | R. P. Scherer Corporation (St. Petersburg, FL) |
Application Number: | 09/305,080 |
Patent Claim Types: see list of patent claims | Composition; Compound; Dosage form; Process; |
Drugs Protected by US Patent 6,423,342
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
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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 |
Foreign Priority and PCT Information for Patent: 6,423,342
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
United Kingdom | 9504201 | Mar 02, 1995 |
International Family Members for US Patent 6,423,342
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Austria | 203397 | ⤷ Try a Trial | |||
Australia | 4884596 | ⤷ Try a Trial | |||
Germany | 69614096 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |