Samtidig indgift af de to stoffer resulterede i en forringet opmærksomhed, hukommelse og koordination sammenlignet med zolpidem indgivet alene.
Concomitant administration resulted in increased impairment of attention, memory and co-ordination compared to zolpidem alone. • Circadin has been co-administered in studies with thioridazine and imipramine, active substances which affect the central nervous system.