Patents Examined by Donald R. M. Phail
  • Buccal dosage form
    Patent number: 5135752
    Abstract: A matrix for a buccal dosage form which melts in the oral cavity at body temperature but will not spontaneously deform at higher temperatures encountered in shipment and storage comprises:______________________________________ Low MW Polyethylene glycol 75-90% (M.P. about 37.degree. C.) Medium to high MW polyethylene glycol 0-4% Long chain saturated carboxylic acid 0-4% Polyethylene oxide 0.1-4% (MW 100,000-5,000,000) Colloidal silica 10-20%.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: August 4, 1992
    Assignee: Zetachron, Inc.
    Inventor: Wallace C. Snipes