Hisamitsu Pharmaceutical Co., Inc. engages in the research, development, manufacture, and sale of pharmaceuticals and related products. Its products are sold under Salonpas, Salonsip, Mohrus, ByeBye-Fever, and Keplat brands. It also provides ethical pharmaceuticals, over- the-counter drugs, medical devices, health supplements, and topical analgesic products. The company was founded by Nihei Hisamitsu in 1847 and is headquartered in Tosu, Japan.