A document, vital for people having Glucose-6-phosphate dehydrogenase deficiency (favism) is available. The link is https://www.epicentro.iss.it/coronavirus/pdf/en-report-covid-19-14-2020.pdf . In this document it is told that "Chloroquine and hydroxychloroquine currently applied to COVID-19 patients should be avoided in those with severe G6PD deficiency as they could trigger a hemolytic crisis in the patient". Other very important references are also given. Besides Chloroquine and Hydroxychloroquine, Primaquine and 8-Aminoquinolines are considered.
https://web.archive.org/web/20200518070228/https://www.epicentro.iss.it/coronavirus/pdf/en-report-covid-19-14-2020.pdf