Table 3.
Main causes of drug related problems (DRP) according to the PCNE classification version 6.2
| Causes of DRP (n = 1142) | n | % |
|---|---|---|
| C3- Dose selection | 454 | 39.7 |
| C3.1- Drug dose too low | 154 | 13.5 |
| C3.3- Dosage regimen not frequent enough | 124 | 10.9 |
| C3.2- Drug dose too high | 117 | 10.2 |
| C3.7- Deterioration or improvement of disease state requiring dose adjustment | 38 | 3.3 |
| C3.4- Dosage regimen too frequent | 21 | 1.8 |
| C5- Drug use process | 373 | 32.7 |
| C5.5- Wrong drug administered | 164 | 14.4 |
| C5.1- Inappropriate timing of administration and/or dosing intervals | 103 | 9.0 |
| C5.4- Drug not administered at all | 70 | 6.1 |
| C5.2- Drug under-administered | 36 | 3.2 |
| C6- Logistics | 187 | 16.4 |
| C6.2- Prescription error (necessary information missing) | 157 | 13.8 |
| C6.1- Prescribed drug not available | 30 | 2.6 |
| C1- Drug selection | 52 | 4.5 |
| C1.3- Inappropriate combination of drugs, or drugs and food | 35 | 3.1 |
| C1.8- Synergistic or preventive drug required and not given | 6 | 0.5 |
| C1.4- Inappropriate duplication of therapeutic group or active ingredient | 4 | 0.3 |
| C1.5- Indication for drug treatment not noticed | 4 | 0.3 |
| C1.2- No indication for drug | 2 | 0.2 |
| C1.1- Inappropriate drug | 1 | 0.1 |
| C8- Other | 76 | 6.7 |
| C8.1- Others specific causes | 76 | 6.7 |
| C8.2- No obvious cause | 0 | 0 |