Iwaki Seiyaku Co., Ltd.
Corporate brand
UnclaimedJapanese pharmaceutical company in the Astena Group that develops, manufactures and sells dermatological external preparations and solid dosage forms, and markets the medical-institution-exclusive skincare brand NABIJON DR.
Last updated September 16, 2026
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Overview
Iwaki Seiyaku Co., Ltd. is a Japanese pharmaceutical company positioned as the core company of the pharmaceutical business of the Astena Group. It develops, manufactures and sells external skin preparations such as ointments, creams and lotions, as well as solid dosage forms such as tablets and powders. In the aesthetic medicine field it develops business centered on NABIJON DR, a skincare line sold exclusively through medical institutions. Its headquarters is in Chuo-ku, Tokyo, with a Kamata office (Kamata plant and R&D department) in Ota-ku, Tokyo. The company states a corporate philosophy of 'technology-based company' and a vision of being a 'trusted leading company in topical medicines and skincare'.
History
Iwaki Seiyaku states that it provides high-quality, easy-to-use pharmaceutical products to society, protecting people's health and continuing to create the future. The Iwaki Group transitioned to a holding company structure on June 1, 2021 and became the Astena Group, structured around the holding company Astena Holdings and comprising companies in four businesses: fine chemicals, pharmaceuticals, HBC/food, and chemicals. Within this structure, Iwaki Seiyaku is described as the core company of the Astena Group's pharmaceutical business. In the pharmaceutical field it develops, manufactures and sells external skin preparations such as ointments, creams and lotions, and solid dosage forms such as tablets and powders; in the aesthetic medicine field it develops business centered on the medical-institution-exclusive cosmetics line NABIJON DR. The company's mainstay adrenal cortical hormone topical dermatological agents and topical antifungal agents are offered in ointment, cream, lotion, liquid and gel forms to match usability needs.
Products and positioning
Trusted leading company in topical medicines and skincare; core company of the Astena Group's pharmaceutical business.
NABIJON DR
Medical-institution-exclusive cosmetics (aesthetic medicine skincare line).
Ilsela
Cosmetics for medical institutions.
Sources4 sources
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