A 24-year-old student was brought to the emergency department complaining of chest-pain, vomiting, light-headedness, and difficulty in breathing. After detail enquiry, it was revealed that he fell ill at a party after consuming beer. He also mentioned that he was taking metronidazole for the past 10 days to control his symptoms of athlete’s foot. What could be the cause of his symptoms?

*This patient case is from Docplexus Editorial Team for educative purpose only. Source: Clinical Pharmacy, SlideShare. The correct answer is posted in the comments section ( Click here ).