Table 2.
Object Drug | Precipitant Drug | Correct Answer for MS Scores | Correct Response, % Baseline | Correct Response, % Post Test | Correct Response, % 1-Year | Absolute Difference in Scores Between: | ||
Baseline and Post | Post and 1-Year | Baseline and 1-Year | ||||||
Nitroglycerine | Sildenafil | AC | 94 | 100 | 100 | +6 | 0 | +6 |
Warfarin | Sulfamethoxazole/trimethoprim | UAC | 26 | 88 | 56 | +62 | −32 | +30 |
Acetaminophen/codeine | Amoxicillin | NI | 91 | 100 | 100 | +9 | 0 | +9 |
Warfarin | Naproxen | UAC | 24 | 91 | 38 | +67 | −53 | +14 |
Warfarin | Amiodarone | TP | 50 | 68 | 59 | +18 | −9 | +9 |
Warfarin | Fluconazole | UAC | 32 | 91 | 41 | +59 | −50 | +9 |
Digoxin | Amiodarone | TP | 21 | 82 | 44 | +61 | −38 | +23 |
Carbamazepine | Clarithromycin | TP | 50 | 85 | 41 | +35 | −44 | −9 |
Warfarin | Gemfibrozil | UAC | 18 | 91 | 32 | +73 | −59 | +14 |
Simvastatin | Itraconazole | UAC | 24 | 68 | 53 | +44 | −15 | +29 |
Digoxin | Itraconazole | TP | 29 | 74 | 41 | +45 | −33 | +12 |
Digoxin | Clarithromycin | TP | 29 | 91 | 53 | +62 | −38 | +24 |
Digoxin | Sildenafil | NI | 44 | 91 | 59 | +47 | −32 | +15 |
Metformin | Erythromycin | NI | 38 | 88 | 59 | +50 | −29 | +21 |
Warfarin | Digoxin | NI | 9 | 79 | 44 | +70 | −35 | +35 |
Abbreviations: MS = DDI Management Strategy; AC = Avoid Combination; UAC = Usually Avoid Combination; TP = Take Precautions; NI = No Interaction.