Ten most frequently administered drugs and associated administration errors
| Drugs (brand name) | Route of administration mainly involved in errors | Dose form mainly involved in errors | Committed errors | No (prevalence (%)) before intervention (N=213 drugs) | No (prevalence (%)) after intervention (N=174 drugs) |
| Colecalciferol/sodium fluoride (d-Fluoretten) | By tube | Tablet | Dissolution/suspension was not immediately used | 7 (3.3) | 6 (3.4) |
| Dexamethasone (Fortecortin) | By mouth | Tablet | Tablets were stored outside the blister after splitting | 13 (6.1) | 0 (0) |
| Levetiracetam (Keppra) | By mouth | Dissolution | Remaining liquids once out of the bottle were poured back into the storage bottle | 13 (6.1) | 23 (13.2) |
| l-thyroxine (l-Thyroxin) | By mouth | Tablet | Administration together with food without appropriate interval | 11 (5.2) | 0 (0) |
| Metoprolol (Beloc-ZOK) | By mouth/by tube | Tablet | Not the entire dissolution/suspension was administered, or undissolved tablet fragments were left | 5 (2.3) | 5 (2.9) |
| Omeprazole (Antra) | By mouth/by tube | Tablet | Preparation by mortar or administration together with dairy products | 15 (7.0) | 18 (10.0) |
| Oxcarbazepine (Trileptal) | By tube | Suspension | Remaining liquid once out of the bottle was poured back into the storage bottle | 2 (0.9) | 9 (5.2) |
| Pyridoxin (different brands) | By tube | Tablet | Preparation by mortar, administration together with other drugs, and storage before use without protection from light | 5 (2.3) | 11 (6.3) |
| Sucralfate (Ulcogant) | By tube | Suspension | Remaining liquid once out of the bottle was poured back into the storage bottle | 7 (3.3) | 4 (2.3) |
| Topiramate (Topamax) | By mouth | Tablet | Inappropriate splitting of tablets according to drug label | 13 (6.1) | 17 (9.8) |