the blood pressure and pulse rate have been compared in a 'double blind , cross over ' study involving twenty patients with idiopathic parkinsonism receiving maximum tolerated dosage of levodopa with and without an extracerebral decarboxylase inhibitor , l-alpha-methyldopahydrazine .
C0030567
idiopathic parkinsonism
C0006982
alpha-methyldopahydrazine