Bioequivalence assessment of ambroxol orally-disintegrating tablet after a single oral-dose administration to healthy volunteers.

Objective: In this study, a modified LC-MS/MS method was used to determine plasma ambroxol concentration and thereby examine the bioequivalence of two ambroxol medications among healthy Chinese male volunteers.

Methods: The study used a single-dose, randomized, open-label design principle and calculated pharmacokinetic parameters for the comparison of the two formulations.

Results: Administration of a single oral dose of either the test drug or reference drug was found to be safe in healthy subjects. No severe, serious, or life-threatening clinical or drug-related side effects were reported during the study. The majority of clinical laboratory test results were within the normal range or not clinically significant. The pharmacokinetic parameters for ambroxol oral tablets and ambroxol orally disintegrating tablets were comparable. For the comparison of the two formulations, the 90% confidence intervals for the log-transformed pharmacokinetic parameters (Cmax, AUC0-t, and AUC0-inf) fell within the bioequivalence< acceptance criteria (80-125%).

Conclusions: The ambroxol oral tablets were bioequivalent to ambroxol orally-disintegrating tablets in healthy human adult male volunteers, under fasting conditions.