Dosage form and method for treating incontinence

  • US 5,912,268 A
  • Filed: 02/26/1997
  • Issued: 06/15/1999
  • Est. Priority Date: 05/22/1995
  • Status: Expired due to Term
First Claim
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1. A dosage form for delivering oxybutynin to a patient, wherein the dosage form comprises:

  • a drug core comprising 240 ng to 650 mg of oxybutynin, 20 mg to 250 mg of polyalkylene oxide, and 1 mg to 50 mg of hydroxypropylalkylcellulose;

    a wall that surrounds the drug core permeable to fluid and impermeable to oxybutynin; and

    an exit in the wall for delivering the oxybutynin from the dosage form to the patient.

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