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US 8,147,870 B2Granted
Oral drug delivery system
AssigneeDurect Corporation
InventorsSu Il Yum, Grant Schoenhard, Arthur J. Tipton, John W. Gibson, John C. Middleton
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Abstract
Dosage forms and drug delivery devices suitable for administration of pharmaceutical compounds and compositions, including the oral drug administration of compounds.
Claims25
A method of preparing an oral dosage form, wherein the oral dosage form comprises a formulation comprising:
- an opioid;
- sucrose acetate isobutyrate (SAIB);
- a cellulose acetate butyrate (CAB) having a number average molecular weight ranging from 66,000 Daltons to 83,000 Daltons;
- isopropyl myristate (IPM);
- and
- a solvent in which the CAB is soluble,
- the method comprising:
- combining the SAIB, the CAB, the solvent, and the IPM to form a solution;
- and
- then adding the opioid to the solution to form the formulation.
7 more elements
Dependencies are inferred from the claim text.