Study links popular antibiotic to increased risk of heart problems
Clarithromycin is commonly used to treat lower respiratory infections, such as pneumonia and the sudden worsening of Chronic Obstructive Pulmonary Disease, or COPD.
A new study found that 26 percent of COPD patients and 12 percent of pneumonia patients who received Clarithromycin experienced at least one heart problem over the next year.
Patients who did not receive the antibiotic had a lower rate of heart problems.
The study did not establish a cause-and-effect relationship.