Thioxanthones

Isopropylthioxanthone (ITX) is used as a photoinitiator in printing.

Lucanthone (Miracil D, Myracyl D) is a drug used to treat parasitic diseases such as schistosomiasis, which was invented in 1938 by Hans Mauss and colleagues at Bayer AG. It is a prodrug and is converted to the active metabolite hycanthone. It is no longer commonly used in humans due to hepatotoxicity, especially after the subsequent development of safer drugs with similar efficacy such as praziquantel.