Table 2.

Types of drug-related problems identified at the pediatric hematology/oncology ward of Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia, 25 June–25 October, 2018.

Types of DRPs	Causes of DRPs	No. of DRPs	Total	(%)
Unnecessary drug therapy	Duplicate therapy	12	25	9.7
	No medical indication at this time	13
Needs additional therapy	Preventive therapy	49	70	27.2
	Untreated condition	20
	Synergistic therapy	1
Ineffective drug	More effective drug available	6	11	4.3
	Dosage form inappropriate	5
Dosage too low	Ineffective dose	48	60	23.3
	Frequency inappropriate	10
	Duration inappropriate	2
Adverse drug reaction	Undesirable effect	6	14	5.5
	Drug interaction	1
	Incorrect administration	1
	Dosage increase/decrease too fast	6
Dosage too high	Dose too high	28	41	16.0
	Needs additional monitoring	3
	Frequency too short	7
	Duration too long	3
Nonadherence	Does not understand instructions	6	36	14.0
	Cannot afford drug product	1
	Patient prefers not to take	5
	Patient forgets to take	1
	Drug product not available	22
	Cannot swallow/administer drug	1