Rilmazafone is known as one of the 'Japanese benzos' because it was first developed in Japan. It is a substituted heterocyclic 1,2,4 triazole of the class triazolyl benzophenones. Rilmazafone is considered to be a benzodiazepine pro-drug, and in Japan, is used for the short-term treatment of insomnia. Benzodiazepines are scheduled as Prescription Medicines in Schedule 1 of the Medicines Regulations 1984. However, rilmazafone is itself not a benzodiazepine.
