From month 3 to month 12, following discontinuation of ciclosporin, mean (10th, 90th percentiles) troughs (expressed as chromatographic assay values) and daily doses were 19  4.1 ng/ ml (14 to 24 ng/ ml) and 8.2  4.2 mg (3.6 to 13.6 mg), respectively (see section 4.2).