title: Improved delivery through biological membranes XVI. Enhancement of the brain-specificity of a dihydropyridine formed from pyridinium salt drug delivery system by controlled infusion.
mesh_terms: D000818:Animals; D001599:Berberine / Q000008:administration & dosage* / Q000031:analogs & derivatives / Q000378:metabolism*; D001600:Berberine Alkaloids / Q000008:administration & dosage* / Q000378:metabolism*; D001921:Brain / Q000187:drug effects* / Q000378:metabolism; D066298:In Vitro Techniques; D007275:Injections, Intravenous; D010084:Oxidation-Reduction; D051381:Rats
chemical_list: D001600:Berberine Alkaloids; D001599:Berberine; C039639:dihydroberberine