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An excerpt of 149 (17%) ingredient groups from the February 2015 CI hierarchy’s IAbN. The smaller ingredient groups have been hidden. Child-of links are hidden for readability and longer ingredient group names are truncated. The number of ingredients and drugs summarized by each ingredient group is shown in parentheses and prepended with I: and D:, respectively. Salicylates and Aminosalicylic acids, from Figure 1(c), are highlighted in yellow.
