>>11514408no, in general hydroxychloroquine and azithromycin should not be taken together
https://www.pdr.net/drug-summary/Plaquenil-hydroxychloroquine-sulfate-1911Azithromycin: (Major) Avoid coadministration of hydroxychloroquine and azithromycin due the risk of additive QT prolongation. If use together is necessary, perform an ECG at baseline and monitor closely throughout therapy, avoid any non-essential QT prolonging drugs, and correct electrolyte imbalances prior to initiation. Hydroxychloroquine prolongs the QT interval. Qt prolongation and torsade de pointe (TdP) have been spontaneously reported during azithromycin postmarketing surveillance.