Binds to benzodiazepine receptors at the GABA-A ligand-gated chloride channel complex
Enhances the inhibitory effects of GABA
Boosts chloride conductance through GABA-regulated channels
Inhibitory actions in sleep centers may provide sedative hypnotic effects
How Long Until It Works
Generally takes effect in less than an hour
If It Works
Improves quality of sleep
Effects on total wake-time and number of nighttime awakenings may be decreased over time
If It Doesn’t Work
If insomnia does not improve after 7–10 days, it may be a manifestation of a primary psychiatric or physical illness such as obstructive sleep apnea or restless leg syndrome, which requires independent evaluation
Increase the dose
Improve sleep hygiene
Switch to another agent
Best Augmenting Combos for Partial Response or Treatment Resistance
Generally, best to switch to another agent
Trazodone
Agents with antihistamine actions (e.g., diphenhydramine, tricyclic antidepressants)
Tests
In patients with seizure disorders, concomitant medical illness, and/or those with multiple concomitant long-term medications, periodic liver tests and blood counts may be prudent