Hydroxychloroquine plus Azithromycin May be Risky
International cohort studies suggest that adding azithromycin to hydroxychloroquine (HCQ) treatment may increase heart failure and cardiovascular mortality, potentially due to synergistic effects on QT length of ECG. Severe adverse events associated with HCQ-azithromycin were compared to HCQ-amoxicillin in rheumatoid arthritis patients aged 18+ and followed up over 30 days. […]