II. Adverse Effect: Increased Drug effect (common)
- Azathioprine (Imuran, Bone Marrow suppression risk)
- Benzodiazepines and other Sedative Hypnotics (Sedation risk)
- Digoxin (Digoxin Toxicity risk)
- Methotrexate (Bone Marrow suppression risk)
-
Phenytoin (Ataxia and sedation risk)
- Chloramphenicol
- Isoniazid
- Phenylbutazone
- Propranolol (Bradycardia risk)
-
Sulfonylureas (Hypoglycemia risk)
- Chloramphenicol
- Phenylbutazone
- Warfarin
-
Warfarin (Bleeding risk)
- Aspirin
- Metronidazole
- Phenylbutazone