Burgess, Ryan & Wayne
Transdermal formulation of nicardipine hydrochloride
 A formulation is provided for the transdermal administration of nicardipine hydrochloride. The formulation is comprised of nicardipine hydrochloride dissolved or suspended in a mixed liquid composed of an urea and at least one compound selected from the group consisting of propylene glycol, a monohydric alcohol having 2 to 4 carbon atoms, lactic acid, thioglycol, a middle chain fatty acid glyceride and a sorbitan middle chain fatty acid ester compounded with a transdermal formulation base. 
Yamanouchi Pharmaceutical Co, Ltd.
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Yutaka Mitsuo Hiroitsu Takashi Masayoshi
Konno Mitomi Kawata Sonobe Aruga