Study of supramolecular complex of nifedipine with arabinogalactan on Wistar and ISIAH rats.

Physicochemical and pharmacological study of the supramolecular inclusion complexes of the hypotensive drug nifedipine (NF) with the larch polysaccharide arabinogalactan (AG). The NF:AG complexes were obtained and their physicochemical properties were studied. Their hypotensive action and pharmacokinetic profiles were evaluated in rats with normal and elevated arterial blood pressure. In both rat lines the NF:AG complex decreased the arterial blood pressure at a lower dose than free NF (1.75 mg/kg of NF in complex compared with 3.5 mg/kg of free NF) and has a better pharmacokinetic profile than free NF. The use of the NF:AG complex is an effective way to sufficiently enhance and hasten NF's hypotensive action.