Clonazepam’s exact mechanisms not understood; benzodiazepines potentiate the effects of GABA, an inhibitory neurotransmitter.

Exact mechanisms are not understood; acts mainly at subcortical levels of the CNS, leaving the cortex relatively unaffected.

Exact mechanisms of action not understood; main sites of action may be the limbic system and reticular formation; increases the effects of GABA, an inhibitory neurotransmitter; anxiety blocking effects occur at doses well below those necessary to cause sedation, ataxia.

Exact mechanisms of action not understood; acts mainly at the limbic system and reticular formation; may act in spinal cord and at supraspinal sites to produce skeletal muscle relaxation; potentiates the effects of GABA, an inhibitory neurotransmitter; anxiolytic effects occur at doses well below those necessary to cause sedation, ataxia; has little effect on cortical function.