Valproic acid is used in first case as an antiepileptic; own clinical observance and references from the literature show other indication-fields outside of the group of cerebral fits; so Convulex was employed successfully also in the therapy of perioral dyskinesia of variable etiology and in the medical treatment of therapy-resistant pains within the bounds of Polyneuropathy-Polyneuritis Syndrome. Our own experience is presented by the description of the 10 case histories.