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Last Updated: March 28, 2024

Details for Patent: 6,534,089


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Title: Uniform drug delivery therapy
Abstract:The invention disclosed pertains to a novel delivery system comprising an agent formulation and means for dispensing the agent formulation from the delivery system.
Inventor(s): Ayer; Atul D. (Palo Alto, CA), Lam; Andrew (San Francisco, CA), Magruder; Judy A. (Mountain View, CA), Hamel; Lawrence G. (Mountain View, CA), Wong; Patrick S. L. (Palo Alto, CA)
Assignee: Alza Corporation (Mountain View, CA)
Filing Date:Jun 23, 2000
Application Number:09/602,916
Claims:1. A dosage form for the delivery of a drug, wherein the dosage form comprises: (a) a drug composition; (b) a dose of drug comprising a size of less than 150 .mu.m in the drug composition; (c) a hydrophilic polymer comprising a size of less than 250 .mu.m in the drug composition: (d) a coat that surrounds the drug composition comprising means for delaying release of drug from the drug composition; (e) a wall comprising a composition that surrounds the coat; and (f) means in the dosage form for delivering the drug from the dosage form; wherein said drug is verapamil hydrochloride; and wherein the dosage form releases said verapamil hydrochloride at a rate having a percentage deviation of not more than 5% from the mean release rate over a prolonged period of time.

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