Solubilizer and external preparations containing the same

Patent 5725874 Issued on March 10, 1998. Estimated Expiration Date:

November 16, 2015. 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.

Abstract Claims Description Full Text

Patent References

3-Levo-Menthoxypropane-1,2-diol Patent #: 4459425
Issued on: 07/10/1984
Inventor: Amano , et al.

Inventors

Assignee

Hisamitsu Pharmaceutical Co., Inc.

Application

No. 553615 filed on 11/16/1995

US Classes:

424/443, Web, sheet or filament bases; compositions of bandages; or dressings with incorporated medicaments424/45, Organic pressurized fluid424/401, Cosmetic, antiperspirant, dentifrice424/447, Bandages with incorporated medicaments424/448, Pressure sensitive adhesive means424/449, Transdermal or percutaneous514/937, DISPERSION OR EMULSION514/944, GEL514/945, FOAM514/969OINTMENT OR SALVE BASE

Examiners

Primary: Bawa, Raj

Attorney, Agent or Firm

Bucknam and Archer

Foreign Patent References

0080148 EP. 06/13/1983
63-264522 JP. 11/13/1988

International Class

A61F 013/00

Foreign Application Priority Data

1993-05-19 JP

Abstract

Percutaneously absorbable preparations which comprise, by weight, 0.001 to 20%, preferably 0.1 to 20%, of 3-l-menthoxy-propane-1,2-diol as a solubilizer for a drug and 0.001 to 20%, preferably 0.5 to 10%, of the drug as two essential ingredients, the balance being other ingredients as adjuvants selected from water-soluble polymers, monohydric alcohols, polyhydric alcohols, rosin esters, water, fatty acid esters, hydrocarbons, softening agents, emulsifying agents. The preparations are in the forms of poultice, plasters, ointments, gels, creams, gel-like creams, lotions, reserver patches, liniments, aerosols and may be used in packs.