×

Tandospiaine antidepressive therapy

  • US 5,330,762 A
  • Filed: 01/27/1993
  • Issued: 07/19/1994
  • Est. Priority Date: 02/27/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. An osmotic dosage form for administering tandospirone to a patient in need of tandospirone therapy, wherein the dosage form comprises:

  • (a) a wall comprising a member selected from the group consisting of cellulose acetate, cellulose diacetate, and cellulose triacetate, which wall forms;

    (b) an internal compartment;

    (c) at least one exit passageway in the wall that connects the exterior of the dosage form with the compartment;

    (d) a push composition in the compartment comprising a composition that, in the presence of fluid that enters the compartment, increases in dimensions and thereby occupies space in the compartment; and

    wherein the osmotic dosage form is characterized by;

    (e) a tandospirone composition comprising 1 mg to 750 mg of tandospirone and a polyethylene oxide polymer comprising a 190,000 to 210,000 molecular weight pressed into a layer that provides a dispensable tandospirone composition for administering, when the dosage form is in operation, to the patient in need of tandospirone therapy at a controlled rate over a period up to thirty hours.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×