Chloroquine or hydroxychloroquine for prevention and treatment of COVID19, Cochrane Database of Systematic Reviews

Review (12 RCTs; n= 8569) found hydroxychloroquine has minimal effect on risk of mortality, no effect on progression to mechanical ventilation, and is associated with triple the number of adverse events vs placebo, therefore no further treatment trials should be carried out.
Source: Current Awareness Service for Health (CASH) - Category: Consumer Health News Source Type: news