TABLE 4.

Effective Substances (n = 78) Involved in MEs That Caused Severe Harm or Death of a Patient (n = 30)

Medicine (n = 78)	n (%)
Enoxaparin*	5 (6.4)
Furosemide	4 (5.1)
Oxycodone*	4 (5.1)
Warfarin*	3 (3.8)
Naloxone	3 (3.8)
Quetiapine	3 (3.8)
Metoprolol	3 (3.8)
Bisoprolol	2 (2.6)
Isosorbide mononitrate	2 (2.6)
Metformin*	2 (2.6)
Digoxin*	2 (2.6)
Diazepam	2 (2.6)
Other	43 (55.1)
Total	78

Only effective substances mentioned in >1 errors are presented with a name.

*Included in the ISMP list of high-alert medicines.^17–19