[Correlation of ornidazole concentration in saliva and serum of healthy volunteers].

Objective: To investigate the distribution of ornidazole in the salivary and serum of healthy adults and explore the feasibility of monitoring serum drug concentration with salivary.

Methods: Six volunteers received a single dose of 0.6 g ornidazole via intravenous infusion. The concentrations of ornidazole in the saliva and serum were assayed by high-performance liquid chomatography, and the correlation of the drug concentrations in saliva to that in serum was analyzed.

Results: The concentration of ornidazole in the saliva was strongly associated with that in the serum (r = 0.825-0.969), and the ratio of saliva-to-serum concentration (S/P) of ornidazole was 0.99 ± 0.13.

Conclusion: Detection of saliva ornidazole concentration is feasible for monitoring the therapeutic concentration of ornidazole.