Hydroxychloroquine alone or with Azithromycin for COVID-19: No benefit but increased risk.
No significant benefit with Hydroxychloroquine and Azithromycin either alone or in combination on in-hospital mortality in COVID-19 patients in New York, USA. However, increased risk of prolonged QT-interval with risk of ventricular arrhythmias.
References
Association of Treatment With Hydroxychloroquine or Azithromycin With In-Hospital Mortality in Patients With COVID-19 in New York State
Risk of QT Interval Prolongation Associated With Use of Hydroxychloroquine With or Without Concomitant Azithromycin Among Hospitalized Patients Testing Positive for Coronavirus Disease 2019 (COVID-19).