Method and preparation for administration to the mucosa of the oral or nasal cavity
Patent 4250163 Issued on February 10, 1981. Estimated Expiration Date: 
December 13, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 13, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2997399 3440065 3511791 3833518 3868259 3868432 Pharmaceutical preparation for oral cavity administration Patent #: 4059686 InventorsAssigneeApplicationNo. 06/103558 filed on 12/13/1979US Classes:514/772.1, Aftertreated solid synthetic organic polymer (e.g., grafting, blocking, etc.)106/35, Dental424/78.05, Anti-inflammatory or anti-irritant (e.g., anti-arthritic, etc.)424/78.06, Skin burn or open wound treatment514/772.6Carboxylic acid containing monomerExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 9/00 (20060101)A61K 47/38 (20060101) A61K 47/32 (20060101) AbstractA method for administering a medicament which comprises adhering to the mucosa of the oral or nasal cavity a pharmaceutical preparation comprising(a) a water-swellable and mucosa-adhesive polymeric matrix comprising about 50 to about 95% by weight of a cellulose ether and about 50 to about 5% by weight of a homo- or copolymer of acrylic acid or a pharmaceutically acceptable salt thereof, and(b) dispersed therein, a pharmaceutically effective amount of the medicament,said preparation releasing continuously the medicament at a controlled rate; and causing the released medicament to be absorbed through the mucosa or enterally; said mucosa-adhesive preparation; and process for said preparation. | |
