Sughrue Mion, PLLC
External preparation
The present invention is a preparation for external use which contains a basic drug, polyvinyl pyrrolidone and a carboxyvinyl polymer and which has a pH of 4 to 9.The present invention has made it possible to provide a new preparation for external use which enables a drug to show a long-lasting action even at a damaged site of the skin.
Taisho Pharmaceutical Co., Ltd.
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Yasuyuki Yoshiko
Suzuki Yoshino