A benzodiazepine designer drug and functional analog of diazepam is diclazepam (Ro5-3448), also known as chlorodiazepam and 2′-chloro-diazepam. Leo Sternbach and his team first synthesized it at Hoffman-La Roche in 1960. Currently, it is not licensed for use as a medicine, but rather marketed as a drug designer and a chemical for testing. In humans, effectiveness and safety have not been tested.
The effects of diazepam in animal models are similar, having anxiolytic, anticonvulsant, hypnotic, sedative, relaxant skeletal muscle and amnestic properties with a potency of approximately 10 times that of diazepam.