Pheneturide (
INN,
BAN) (brand names Benuride, Deturid, Pheneturid, Septotence, Trinuride),[1] also known as phenylethylacetylurea (or ethylphenacemide), is an
anticonvulsant of the
ureide class.[2][3] Conceptually, it can be formed in the body as a metabolic degradation product from
phenobarbital. It is considered to be obsolete[4] and is now seldom used.[5] It is marketed in
Europe, including in
Poland,
Spain and the
United Kingdom.[6] Pheneturide has a similar profile of anticonvulsant activity and toxicity relative to
phenacemide.[7][8] As such, it is only used in cases of severe epilepsy when other, less-toxic drugs have failed.[8] Pheneturide inhibits the metabolism and thus increases the levels of other anticonvulsants, such as
phenytoin.[5][6]