[Propranolol for prophylaxis of migraine (author's transl)].

The prophylactic effectiveness of propranolol (80 to 120 mg per day) in 18 migraine patients was compared with a placebo group of 19 migraine patients in a double blind study without cross over for a treatment period of six and twelve weeks. A statistically significant difference in effect could not be ascertained. The results and methodological assumptions of the double blind studies with cross over already under consideration in the literature are discussed.