• Study involving 21 million adults found a common group of drugs used for pneumonia and skin infections may cause the heart to beat very fast
  • The medicines in question are known as macrolides, such as erythromycin
  • However the researchers stress the risk of heart problems is still low  

http://www.dailymail.co.uk/health/article-3310663/Antibiotics-taken-hundreds-thousands-people-double-risk-sudden-heart-deaths.html