“…Herb pairs are based on established principles known as the ''seven compatibilities'': single action, mutual reinforcement, mutual assistance, mutual restraint, mutual detoxification, mutual inhibition and mutual antagonism (Wang et al, 2012). Although composed of only 2 herbs, herb pairs are the basis of more complex multi-herb formulations and possess most of the basic therapeutic features of such derived formulations (Liu et al, 2012).…”