Neurophysiological experiments on anesthetized rats were used to study the effects of various doses (12.5, 25, 37.5 mg/kg, i.v.) of drug composition migrepin (representing a combination of potassium-2,4-dichlorobenzoate, carbamazepine, and caffeine) on background firing of the trigeminal nucleus caudalis neurons and their responses to electrical stimulation of the dura mater. It was found that migrepin produces direct, dose-dependent inhibitory action on functional activity of TNC neurons. The results confirmed anti-migraine properties of the drug but did not exclude the necessity to study its action in clinical trials.
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