It was previously unknown whether macrolide antibiotics increased the risks of heart arrhythmia, a serious heart rhythm disturbance that can lead to death. New research is now bringing more clarity to this issue.

While some antibiotics may cure a bacterial infection, they also may be linked to less desirable health effects.

If a pregnant woman needs azithromycin , a common antibiotic for various infections, her dosage amount may be determined by her race.