Fig. 5
From: Pharmacokinetic incompatibility of the Huanglian-Gancao herb pair
Powder dissolution profile of berberine in Huanglian extract (HLE) and Huanglian-Gancao extract (HL-GCE) in pH 1.2 hydrochloric acid buffer (a) and pH 6.8 phosphate buffer (b) (mean ± SD, n = 3)