Table 2

Number of medication errors by type, and most frequent ATC codes for each type of error.

Type of error

Medication errors; numbers (%)

The three most frequent ATC codes by type of error; number of errors


B03

C07

N02

N05

N06

R03


Omission of drug

417 (62)

37

37

47

Dose too high

86 (13)

8

9

11

Dose too low

82 (12)

11

12

7

Additional drug

79 (12)

7

8

8

Wrong dosage form

8 (1)

3

3

2

Total

672 (100)

67

68

57


ATC-codes: B03, Antianemic preparations; C07, Beta-blocking agents; N02, Analgesics; N05, Psycholeptics; N06, Psychoanaleptics; R03, Drugs for obstructive pulmonary disease

ATC, Anatomic Therapeutic Chemical

Hellström et al. BMC Clinical Pharmacology 2012 12:9   doi:10.1186/1472-6904-12-9

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