Tolerance and physical dependence to a short-acting benzodiazepine, midazolam.

Midazolam is a new ultra short-acting benzodiazepine whose physical dependence properties have not been well characterized. Our laboratory has demonstrated previously that physical dependence to the long-acting chlordiazepoxide in the rat is inducible by a single intoxicating dose, whereas maximal dependence required chronically equivalent maximally tolerable dosing b.i.