Potentially harmful DERS events by drug category (top 10, by incidence/1000 administrations)
| Drug category | DERS infusions (%) | Moderate | Severe | Total | Incidence/1000 administrations (95% CI) |
| Parenteral anticoagulants | 745 (0.3) | 5 | 13 | 18 | 24.16 (15.3 to 37.9) |
| Antiarrhythmic drugs | 2018 (0.9) | 39 | 5 | 44 | 21.8 (16.3 to 29.1) |
| Antiepileptics | 3068 (1.4) | 21 | 43 | 64 | 20.86 (16.4 to 26.5) |
| Potassium chloride | 32 504 (15) | 166 | 22 | 188 | 5.78 (5.0 to 6.7) |
| Insulin | 6644 (3.1) | 16 | 20 | 36 | 5.4 (3.9 to 7.5) |
| Loop diuretics | 5484 (2.5) | 25 | 0 | 25 | 4.56 (3.1 to 6.7) |
| Antiviral drugs | 4882 (2.3) | 16 | 0 | 16 | 3.28 (2.0 to 5.3) |
| Vitamins and minerals | 9794 (4.5) | 20 | 0 | 20 | 2.04 (1.3 to 3.2) |
| Calcium and magnesium | 16 897 (7.8) | 29 | 4 | 33 | 1.95 (1.4 to 2.7) |
| Antibacterial drugs | 134 821 (62.2) | 134 | 3 | 137 | 1.01 (0.9 to 1.2) |
DERS, drug error reduction software.