Phenacemide (INN, BAN) (brand name Phenurone), also known as phenylacetylurea, is an anticonvulsant of the ureide (acetylurea) class.

[1] It is a congener and ring-opened analogue of phenytoin (a hydantoin),[2][3] and is structurally related to the barbiturates and to other hydantoins.

[4] Phenacemide was introduced in 1949 for the treatment of epilepsy, but was eventually withdrawn due to toxicity.

[2][3] This anticonvulsant-related article is a stub.

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