- allergy or hypersensitivity to hydroxychloroquine. - contraindications to the use of chloroquine (epilepsy, creatinine clearance <30ml / min). - be taking (abiraterone acetate, agalsidase, conivaptan, dabrafenib, dacomitinib, enzalutamide, idelalisib), or medications that cannot be discontinued. - retinal disease. - mifepristone, mitotane, tiripentol. - already established hydroxychloroquine treatment. - pregnancy or suspected pregnancy. - women in breastfeeding. - chronic liver disease (child-pugh b or c). - kidney disease with a glomerular filtration rate of less than or equal to 30ml / min. - cardiac, kidney, liver, ophthalmic, neurological or autoimmune disease previously diagnosed. - prolongation of the qt segment in the ekg. - previous diagnosis of covid-19. - concomitant taking of medications that prolong the qt segment

- allergy or hypersensitivity to hydroxychloroquine. - contraindications to the use of chloroquine (epilepsy, creatinine clearance <30ml / min). - be taking (abiraterone acetate, agalsidase, conivaptan, dabrafenib, dacomitinib, enzalutamide, idelalisib), or medications that cannot be discontinued. - retinal disease. - mifepristone, mitotane, tiripentol. - already established hydroxychloroquine treatment. - pregnancy or suspected pregnancy. - women in breastfeeding. - chronic liver disease (child-pugh b or c). - kidney disease with a glomerular filtration rate of less than or equal to 30ml / min. - cardiac, kidney, liver, ophthalmic, neurological or autoimmune disease previously diagnosed. - prolongation of the qt segment in the ekg. - previous diagnosis of covid-19. - concomitant taking of medications that prolong the qt segment