An update is available for this article. Background: Hydroxychloroquine and chloroquine
have antiviral effects in vitro against severe acute respiratory syndrome coronavirus 2 …

Purpose To assess efficacy and safety of chloroquine (CQ)/hydroxychloroquine (HCQ) for
treatment or prophylaxis of COVID-19 in adult humans. Materials and methods MEDLINE …

Background: No effective oral therapy exists for early coronavirus disease 2019 (COVID-19).
Objective: To investigate whether hydroxychloroquine could reduce COVID-19 severity in …

Background Hydroxychloroquine (HCQ) is an anti-malarial and immunomodulatory drug
considered a potential candidate for drug repurposing in COVID-19 due to their in vitro …

Background Hydroxychloroquine and chloroquine have been proposed as treatments for
coronavirus disease 2019 (Covid-19) on the basis of in vitro activity and data from …

Background There is no effective therapy for COVID-19. Hydroxychloroquine (HCQ) and
chloroquine (CQ) have been used for its treatment but their safety and efficacy remain …

Importance Data on the efficacy of hydroxychloroquine for the treatment of coronavirus
disease 2019 (COVID-19) are needed. Objective To determine whether hydroxychloroquine …

Abstract Background Coronavirus disease 2019 (Covid-19) occurs after exposure to severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2). For persons who are exposed, the …

Background Current strategies for preventing severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) infection are limited to nonpharmacologic interventions …

Background: Identification of therapies to prevent severe COVID-19 remains a priority. We
sought to determine whether hydroxychloroquine treatment for outpatients with SARS-CoV-2 …