Fig. 4. The mean drug plasma concentration–time curves of thirteen compounds after i.v. administration of EBI with high and low dosages. (a)–(m) Represent 5-CQA, 3-CQA, 4-CQA, 4-CDOA, caffeic acid, 1,3-diCQA, scutellarin, 3,4-diCQA, 3,5-diCQA, erigoster B, 3,4-diCDOA (or 4,9-diCDOA), A-7-O-G and 4,5-diCQA, respectively (mean ± SD, n = 6).