Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hidetoshi Hamamoto0
Hideakira Yokoyama0
Date of Patent
June 26, 2007
0Patent Application Number
098905520
Date Filed
December 14, 1999
0Patent Primary Examiner
Patent abstract
This invention relates to external drugs for dermal application which have a migraine-alleviating effect, in more detail ointments and patches comprising in mixing l-menthol and an essential oil into a base containing a hydrophilic high-molecular weight compound, a polyhydric alcohol and water.
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