Cluster 452: absorption gastrointestinal affect condition interfere oral drug malabsorption medication significantly Cluster 899: gastrointestinal alter impairment absorption function significantly incidence disease metabolism rapamycin Cluster 954: metabolism outcomes dysfunction threatening absorption undue compromise safety organ interfere Cluster 1009: disorders absorption gastrointestinal interfere extensive drug study surgery medical history Cluster 2319: excretion metabolism distribution absorption interfere gastrointestinal significantly disease condition presence