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. 2001 Dec 1;323(7324):1294–1297. doi: 10.1136/bmj.323.7324.1294
• Non-steroidal anti-inflammatory drugs • Iron, potassium chloride
• Digoxin • Levodopa
• Antibiotics (macrolides, metronidazole) • Theophylline
• Corticosteroids, oestrogens • Quinidine
• Niacin, gemfibrozil
• Colchicine