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Claims for Patent: 6,063,802

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Claims for Patent: 6,063,802

Title: Ondansetron freeze-dried dosage form compositions for oral administration
Abstract:The invention relates to a freeze-dried dosage form for oral administration capable of being rapidly disintegrated in the mouth comprising ondansetron in the form of its free base or a pharmaceutically acceptable solvate thereof and one or more pharmaceutically acceptable excipients. Methods for the manufacture of such compositions and for their use in the treatment of conditions mediated through the action of 5-hydroxytryptamine (5HT) at 5HT.sub.3 receptors are also described.
Inventor(s): Winterborn; Ian Keith (Ware, GB)
Assignee: Glaxco Wellcome Inc. (Mississauga, CA)
Application Number:09/238,165
Patent Claims: 1. A freeze-dried dosage form for oral administration capable of being rapidly disintegrated comprising ondansetron in the form of its free base or a pharmaceutically acceptable solvate thereof and one or more pharmaceutically acceptable excipients.

2. A composition according to claim 1 comprising ondansetron in the form of its free base.

3. A composition according to claim 1 wherein the amount of ondansetron, expressed as free base, is in the range 0.1 to 100 mg.

4. A composition according to claim 1 comprising ondansetron in the form of its free base, gelatin, sodium methylhydroxybenzoate, sodium propylhydroxybenzoate, strawberry flavouring aid, aspartame, and mannitol.

5. A composition according to claim 2 wherein the amount of ondansetron, expressed as free base, is in the range 0.1 to 100 mg.

6. A composition according to claim 2 comprising ondansetron in the form of its free base, gelatin, sodium methylhydroxybenzoate, sodium propylhydroxybenzoate, strawberry flavoring aid, aspartame, and mannitol.

7. A composition according to claim 3 comprising ondansetron in the form of its free base, gelatin, sodium methylhydroxybenzoate, sodium propylhydroxybenzoate, strawberry flavoring aid, aspartame, and mannitol.

8. A composition according to claim 4 which disintegrates rapidly in the mouth of a patient to which the composition has been administered.

9. A composition according to claim 1 which disintegrates in water within ten seconds.

10. A composition according to claim 9 which disintegrates in water within five seconds.
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