Her er en kilde forresten
Citat:
However, tolerance to the various actions of benzodiazepines develops at variable rates and to different degrees. Tolerance to the hypnotic effects develops rapidly and sleep recordings have shown that sleep patterns, including deep sleep (slow wave sleep) and dreaming (which are initially suppressed by benzodiazepines), return to pre-treatment levels after a few weeks of regular benzodiazepine use. Similarly, daytime users of the drugs for anxiety no longer feel sleepy after a few days.
http://benzo.org.uk/manual/bzcha01.htmJeg er klar over at de to præparater du nævner ikke er benzodiazepiner. Men de er benzodiazepin-lignende midler, hvorfor min ovenstående argumentation og dokumentation stadig er holdbar.