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Butyrophenone is a chemical compound (with a ketone functional group); some of its Butyrophenones are a class of pharmaceutical drugs derived from butyrophenone. — “Butyrophenone - Wikipedia, the free encyclopedia”, en.wikipedia.org
Bromperidol (Bromidol) is a drug which is a butyrophenone derivative. Poldinger W, Bures E, Haage H, Clinical study with bromperidol, a new butyrophenone derivative, Int Pharmacopsychiatry. — “Bromperidol - Wikipedia, the free encyclopedia”, en.wikipedia.org