With the COVID-19 pandemic, the need for the search for medicines for the treatment and prevention of the disease arose. Consequently, some drugs were reused. Thus, the present study aimed to conduct a review of the drugs chloroquine, hydroxychloroquine and ivermectin, highlighting the mechanisms of action, studies that prove- or not- their efficacy goes to SARS-CoV-2 and the main adverse effects related to irr...