Metronidazole Induced Aphthous Ulcer with Angular Cheilitis

Metronidazole is an antiprotozoal drug, which has broad spectrum cidal activity against anaerobic protozoa and microaerophillic bacteria. Aphthous ulcer is a very rare side effect with metronidazole. Here we report a case of 55 year old male suffered from metronidazole induced aphthous ulcer with angular cheilitis.