In Vitro Antiplasmodium and Chloroquine Resistance Reversal Effects of Andrographolide

Figure 2

FIC₅₀- and FIC₉₀-based isobolograms for different combination mixtures of andrographolide and chloroquine at (10 : 0, 7 : 3, 5 : 5, 3 : 7, and 0 : 10 (chloroquine/andrographolide)). The red lines in the two graphs represent lines of additivity. Synergy is considered for the points located above the line of additivity while antagonism is considered for points located above that line.

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