tokens: The regional blockade of H1R was observed mainly in the frontal , temporal and anterior cingulate cortices , and the intravenous administration of d-chlorpheniramine as a therapeutic dose ( 2 mg ) blocked over 60 % of H1R in the frontal cortices .
folded_tokens: the regional blockade of h1r be observe mainly in the frontal , temporal and anterior cingulate cortex , and the intravenous administration of d-chlorpheniramine as a therapeutic dose ( 2 mg ) block over 60 % of h1r in the frontal cortex .