Influence of bradykinin and drugs blocking alpha and beta-adrenergic receptor on the stimulating effect of nialamide and L--DOPA.

It has been found that kinins increase psychostimulatory effects of Nialamide and L-DOPA as well as psychoinhibitory effects of propranolol without any changes in phentolamine action. Phentolamine and propranolol decrease stimulatory effects of Nialamide and L-DOPA only when they are given jointly with bradykinin.