×

Bioadhesive pharmaceutical delivery system

  • US 5,554,380 A
  • Filed: 05/15/1995
  • Issued: 09/10/1996
  • Est. Priority Date: 08/04/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A solid or semi-solid bioadherent, orally ingestible system, which comprises:

  • a water-in-oil system having at least two phases, one phase comprises from about 25% to about 75% by volume of an internal hydrophilic phase wherein the hydrophilic phase is selected from the group consisting of water, glycerine, sorbitol solutions, sugar syrups, polymer solutions and mixtures thereof, and the other phase comprises from about 25% to about 75% by volume of an external hydrophobic phase, wherein the external hydrophobic phase is comprised of three components, a) one component being about 5% to about 50% of an emulsifier, b) a second component being about 10% to about 75% of a mixture of glyceride esters of long chain fatty acids and c) a third component being about 10% to about 50% of a wax material.

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