Bromism, the chronic intoxication with bromide is rare and has been almost forgotten. In the recent past bromide is rediscovered as an anticonvulsive drug. The increasing frequency of bromism in children coming to admission induced this report. We describe the cause, the symptoms and the pseudohyperchloremia associated with bromism. If unclarified neurological or psychiatric symptoms are associated with the determination of an elevated serum chloride concentration and a diminished anion gap chronic intoxication with bromide has to be excluded.