“…antd tile Royal Infirmnary of Edinbutrgh In 1954 Badenoch described the cases of two epileptic patients who developed megaloblastic anaemia while tinder treatment with phenytoin sodium, and subsequently 10 further such cases were recorded (Hawkins and Meynell, 1954;Chalmers and Boheimer, 1954;Rhind and Varadi, 1954;Webster, 1954;Berlyne et al, 1955;Ryan and Forshaw, 1955). All the patients had received phenytoin sodium; in all but one instance, where no mention is made of the fact, phenobarbitone had been given in addition, and sometimes other anticonvulsant drugs had supplemented therapy.…”