[Double-blind study of tiapride and placebo in patients with subcontinuous essential headache]

25 patients with subcontinual primary headache were treated with Tiapride an Placebo in a controlled double-blind study. The duration of trial was 13 weeks. Blood samples were taken to value PRL in 10 patients and in 10 normal subjects. During the pharmacological trial no side-effects appeared. Authors refer results elaborated through statistical examinations. Tiapride is useful to reduce the frequency of the attacks (in 65% of the patients) with percentage of improvement statistically significant in comparison with placebo. Headache index appears influenced although in non statistically significant way.