Table 2.
Classification of drug therapy problems and interventions
| Drug therapy problems (N = 275) | |
| Mean per patient, n (range) | 2.75 (0-8) |
| Category, n (%)* | |
| Additional therapy required | 65 (23.6) |
| Nonadherence | 64 (23.3) |
| Adverse drug reaction | 49 (17.8) |
| Unnecessary drug therapy | 34 (12.4) |
| Suboptimal response | 30 (10.9) |
| Abuse/overuse/high dose | 17 (6.2) |
| Inappropriate medication | 16 (5.8) |
| Medical condition involved, n (%)* | |
| Diabetes | 45 (16.4) |
| Hypertension | 26 (9.5) |
| Asthma/COPD | 23 (8.4) |
| Osteoporosis | 22 (8.0) |
| GERD | 16 (5.8) |
| Cardiovascular disease | 16 (5.8) |
| Mood/behaviour | 12 (4.4) |
| Neurodegenerative diseases | 11 (4.0) |
| Osteoarthritis | 7 (2.6) |
| Glaucoma | 6 (2.2) |
| Hypothyroidism | 5 (1.8) |
| Chronic kidney disease | 3 (1.1) |
| Dyslipidemia | 3 (1.1) |
| Other | 80 (29.1) |
| Interventions, n (%) | |
| Pharmacist intervention | 144 (52.4) |
| Physician intervention required | 131 (47.6) |
| Accepted | 70 (53.4) |
| Rejected | 36 (27.5) |
| No response | 25 (19.1) |
| Medication cabinet clean-up | |
| Patients requiring medication removal | 67 |
| Medications removed, n (%) | |
| Expired | 150 (54.2) |
| Unnecessary | 127 (45.8) |
COPD, chronic obstructive pulmonary disease; GERD, gastroesophageal reflux disease.
*
Sum may exceed 100, as more than 1 may be present per patient.