Erratum to: Eur J Clin Pharmacol (2009) 65:287–294

DOI 10.1007/s00228-008-0587-2

The original version of this article unfortunately contained a couple of mistakes.

In the Results section of the Abstract, the last sentence should read: “The mean of individual ratios (reference-to-test) of log-transformed AUC values (90% confidence interval) were 0.951 (0.915–0.986) for ethinylestradiol and 0.968 (0.944–0.992) for ketodesogestrel indicating a small gain in bioavilability, but bioequivalence nevertheless.”

The last sentence of the caption for Fig. 2 should read: “Closed circles indicate the baseline, open circles indicate values after 14 days of application of Ze 117.”