Table 2. Types and frequency of medication errors .

Medication error types	No.	%
Prescription errors
Inappropriate drug (not most appropriate for indication)	34	14.6
Inappropriate dosage form (not most appropriate for indication)	4	1.7
Inappropriate duplication of therapeutic group or active ingredient	6	2.6
Contraindication for drug	4	1.7
No clear indication for drug use	30	12.9
No prescription of drug despite clear indication	24	10.3
Low drug dosage or frequency	15	6.4
High drug dosage or frequency	37	15.9
Too short treatment duration	2	0.9
Too long treatment duration	11	4.7
No control of drug interaction	4	1.7
Transcription errors	50	21.5
Administration errors
Drug not administered	9	3.9
Wrong drug administered	3	1.3