Classification of DRPs Number of Occurrences Proportion / Sample* [N = 367] Proportion / Total DRPs [N = 474]
Adverse drug reaction 167 45.5 35.2
Dosing problem 139 37.9 29.3
Inappropriate drug chart 65 17.7 13.7
Unnecessary drug therapy 62 16.9 13.1
Needs additional therapy 30 8.2 6.3
Drug-drug interaction 11 3 2.3
*Total does not add up to 100% as some patients had >1 reported DRP.
Table 3: Classification of Drug-related problems in cancer in-patients at TASH.