×

Long-acting articles for oral delivery and process

  • US 4,039,653 A
  • Filed: 07/21/1975
  • Issued: 08/02/1977
  • Est. Priority Date: 01/23/1974
  • Status: Expired due to Term
First Claim
Patent Images

1. A tablet for releasing a relatively uniform quantity of a medication or odor-masking material into the oral cavity of a human being or other animal over a prolonged period of time, said tablet comprising:

  • a. An elongated body;

    b. Said body having at least one face having a concave curvature and adapted to fit comfortably along the upper surface of the gums at the side of the mouth;

    c. Said tablet having a surface layer encompassing said tablet comprising principally pharmaceutically acceptable shellac having medicament or essential oil admixed therein to provide substantially immediate release of medicament or odor-masking material into the oral cavity; and

    d. Said tablet having an inner core comprising principally a material selected from the group consisting of ethylcellulose, carboxymethylcellulose, methylcellulose and hydroxypropylcellulose having medicament or essential oil admixed therein for providing substantially more prolonged release of medicament or odor-masking material into the oral cavity.

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