The bioavailability and pharmacokinetics of slow release nifedipine during chronic dosing in volunteers

Eight healthy volunteers received slow release nifedipine 20 mg 12 hourly, for six doses. A nifedipine pharmacokinetic profile was performed after the fifth dosing interval using 12 sampling times over 12 h. A specific high pressure liquid chromatography (h.p.l.c.) nifedipine assay was used. Six of...

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