The present invention relates to the combined use of compounds which are activators of the KCNQ family potassium ion channels and compounds which are serotonin 5-HT1 receptor agonists. The combined use of KCNQ channel activators and 5-HT1 receptor agonists is useful in the treatment of for example movement disorders. The present invention further relates to pharmaceutical compositions, methods of treatments and kits of parts.