Midazolam (Versed®), the first water-soluble benzodiazepine, has had widespread acceptance as a parenteral anxiolitic agent. Its antiepileptic properties were studied in adult patients with good results. Midazolam was administered intramuscularly to 48 children, ages 4 months to 14 years, with 69 epileptic episodes of various types. In all but 5 epileptic episodes, seizures stopped 1-10 min after injection. These results suggest that midazolam administered intramuscularly may be useful in a variety of epileptic seizures during childhood, specifically when attempts to introduce an intravenous line in convulsing children are unsuccessful.