. 2020 Jan 3;15(1):e0227359. doi: 10.1371/journal.pone.0227359

Table 4. Types of drug therapy problems identified from epileptic patients attending at the neurology clinic of TASH, 2017.

DTPs		No. of DTPs	Total	(%)
Drug interaction		45	45	12.8
Adverse drug reaction	Undesired effect	144	146	41.5
Adverse drug reaction	Contraindications	2	146	41.5
Ineffective drugs	Inappropriate drug selection	80	98	27.8
Ineffective drugs	Condition refractory to the drug	18	98	27.8
Need additional therapy	Untreated medical condition	13	18	5.1
Need additional therapy	Need synergistic/potentiating	5	18	5.1
Inappropriate dose	Dose too low	24	42	11.9
Inappropriate dose	Dose too high	18	42	11.9
Unnecessary drug therapy	No medical indication	2	3	0.9
Unnecessary drug therapy	Duplicate therapy	1	3	0.9
Total			352	100

DTP: Drug Therapy Problems