×

Aqueous emulsion for pharmaceutical dosage form

  • US 5,019,397 A
  • Filed: 04/21/1988
  • Issued: 05/28/1991
  • Est. Priority Date: 04/21/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. An osmotic device comprising:

  • (a) a wall comprising an aqueous emulsion of a lower alkylacrylate-lower methacrylate wherein the lower alkyl comprises 1 to 7 carbon atoms and an aqueous emulsion of ethyl cellulose, said wall formed by calescence at a temperature up to 65°

    C. for up to 72 hours, which wall surrounds;

    (b) a compartment;

    (c) a therapeutically effective amount of drug in the compartment; and

    ,(d) at least one passageway in the wall connecting the exterior with the interior of the device for delivering drug over time.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×