J-Dolph Pharmaceutical

J-DOLPH Pharmaceutical is a Japanese pharmaceutical company specializing in the development, manufacturing, and sale of ethical drugs, with a core focus on proctology and gastroenterology. Founded in 1965 and headquartered in Koka, Shiga, the company operates as a wholly-owned subsidiary of Towa Pharmaceutical. J-DOLPH is best known for its expertise in treatments for hemorrhoids and constipation, notably its flagship product Zione Injection, a sclerotherapeutic agent for internal hemorrhoids. The company maintains robust manufacturing capabilities across its facilities in Shiga and Okinawa, producing a variety of formulations including tablets, ointments, and suppositories. Through its specialized portfolio, J-DOLPH serves as a key player in the Japanese market for colorectal and anal health.