Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus.
Hydroxychloroquine has not been approved to treat coronavirus or COVID-19. However, the US Food and Drug Administration (FDA) has authorized emergency use of hydroxychloroquine in adults and adolescents weighing at least 110 pounds (50 kilograms) who are hospitalized with COVID-19.
Hydroxychloroquine is being used to try and stop coronavirus from spreading inside your body. It is not yet known if hydroxychloroquine is a safe and effective treatment for COVID-19, and this use is still experimental.