Hos ældre patienter faldt søvnlatenstiden ofte signifikant med Sonata 5 mg og 8 faldt konsekvent med Sonata 10 mg sammenlignet med 2- ugers undersøgelser med placebo.
In elderly patients, sleep latency was often significantly decreased with Sonata 5 mg and was consistently decreased with Sonata 10 mg compared with placebo in 2-week studies.