By Connor Boyd Health Reporter For Mailonline
Published: 11:49 BST, 11 September 2019 | Updated: 11:49 BST, 11 September 2019
Taking a common class of antibiotics may more than double your chances of getting a serious heart condition, a study suggests.
Researchers found patients using fluoroquinolones had a greater risk of developing aortic and mitral regurgitation, which can lead to heart failure.
The drugs are commonly used to treat everything from chest infections to urinary tract bugs.
Taking fluoroquinolone antibiotics more than doubles your chance of a potentially deadly heart condition, a study suggests. Ciprofloxacin (pictured) is the most prescribed of these
Ciprofloxacin is the most prescribed of these, but other types include levofloxacin, moxifloxacin and norfloxacin.
Researchers at the University of British Columbia (UBC) looked at 125,020 patients who’d taken antibiotics in the last year.
Some had been prescribed fluoroquinolones while others had taken amoxicillin or azithromycin - other types of antibiotics.
The research team discovered 12,505 cases of a leaky valve, which can affect how blood flows around the body.
They found current fluoroquinolone users were 2.4 times more likely to develop the condition than those on amoxicillin.
Meanwhile, patients on fluoroquinolone were at a 1.8 times greater risk than those using azithromycin.
The mitral valve is a small flap in the heart that stops blood flowing the wrong way. If damaged, it can affect how blood flows around the body.
A 'leaky' mitral valve is the nickname for a condition called mitral regurgitation, when it doesn't close tightly enough and blood goes the