Teikoku Pharma USA, Inc. is a subsidiary of Teikoku Seiyaku, Japan. It is an international specialty pharmaceutical company and one of the world leaders in the research, development and manufacture of pharmaceutical transdermal products. The company transforms medicine through innovative solutions. Based in California, it has alliance with Endo Pharmaceuticals, Gr nenthal, Mundipharma, SK Chemicals, Eisai, Novartis, Bayer, IBSA, King Pharmaceuticals, Pfizer and Takeda. Teikoku Pharma USA, Inc. is also one of the largest patch manufacturers in the world.