Bioequivalence of two preparations of doxycycline (Doxydar(TM) 100-mg
capsules and Vibramycin(TM) 100-mg capsules) were compared in a two-wa
y crossover study. Pharmacokinetic parameters were determined for both
formulations, including area under the concentration-time curve, mean
maximum plasma concentration, time to maximum concentration, half-lif
e, and the terminal rate of elimination. Statistical analysis revealed
that differences between the two formulations were not statistically
significant. Quality control data, including assay and disintegration,
indicated that both products met the in-house specifications. It is c
oncluded that Doxydar 100 mg is bioequivalent to Vibramycin 100 mg.