Cloxazolam is a benzodiazepine derivative that has anxiolytic, sedative, and anticonvulsant properties. It is not widely used; as of August 2018 it was marketed in Belgium, Portugal, Brazil, and Japan. Cloxazolam is a benzodiazepine derivative that has anxiolytic, sedative, and anticonvulsant properties. It is not widely used; as of August 2018 it was marketed in Belgium, Portugal, Brazil, and Japan.