Comparative bioavailability study of two preparations of alpha-methyldopa after single, oral doses.

Bioavailability of alpha-methyldopa from a film coated tablet Dopegyt (EGIS Pharmaceutical Works, Budapest, Hungary) and from Aldometil (MSD, Sharp and Dohme GmbH, Munich, FRG) containing 250 mg of effective substance, was investigated in a crossover study in six patients with mild hypertension having normal renal and liver functions. Alpha-methyldopa was determined in plasma by fluorometry. There was no difference in the pharmacokinetic parameters calculated (Cl, Vd, AUC, t1/2) indicating that the two preparations are bioequivalent.