Type of drug by error rate
| Drug group | Number of intravenous administrations of this drug type | Number of administrations in drug group with at least one intravenous error (percentage in drug group) | Number of intravenous errors rated as serious (percentage in drug group) |
| Anti-infective | 455 | 305 (67.0) | 81 (26.6) |
| Antiemetic | 24 | 18 (75.0) | 8 (44.4) |
| Antiulcerant | 15 | 14 (93.3) | 3 (21.4) |
| Steroid | 21 | 14 (66.7) | 2 (14.3) |
| Diuretic | 8 | 4 (50.0) | 1 (25.0) |
| Anticoagulant | 10 | 3 (30.0) | 3 (100.0) |
| Narcotic | 3 | 2 (66.7) | 1 (50.0) |
| Other | 7 | 2 (28.6) | 0 (0.0) |
| Iron | 8 | 1 (12.5) | 0 (0.0) |
| Paracetamol | 17 | 0 (0.0) | 0 |
| All drug types | 568 | 363 (63.9) | 99 (27.3) |