* current hospitalization * allergy to hydroxychloroquine * retinal eye disease * known glucose-6 phosphate dehydrogenase (g-6-pd) deficiency * known chronic kidney disease, stage 4 or 5 or receiving dialysis * structural or ischemic heart disease * personal or family history of prolonged qt syndrome * weight \< 50 kg * known porphyria * current use of: hydroxychloroquine or cardiac medicines of: flecainide, tambocor; amiodarone, cordarone, pacerone; digoxin or digox, digitek, lanoxin; procainamide or procan, procanbid, propafenone, rythmal, sotalol; * current use of medicines which prolong the qt interval including: * antimicrobials: levofloxacin, ciprofloxacin, moxifloxacin, azithromycin, clarithromycin, erythromycin, ketoconazole, itraconazole, or mefloquine * antidepressants: amitriptyline, citalopram, desipramine, escitalopram, imipramine, doxepin, fluoxetine, wellbutrin, or venlafaxine * antipsychotic or mood stabilizers: haloperidol, droperidol, lithium, quetiapine, thioridazine, ziprasidone * methadone * sumatriptan, zolmitriptan

* current hospitalization * allergy to hydroxychloroquine * retinal eye disease * known glucose-6 phosphate dehydrogenase (g-6-pd) deficiency * known chronic kidney disease, stage 4 or 5 or receiving dialysis * structural or ischemic heart disease * personal or family history of prolonged qt syndrome * weight \< 50 kg * known porphyria * current use of: hydroxychloroquine or cardiac medicines of: flecainide, tambocor; amiodarone, cordarone, pacerone; digoxin or digox, digitek, lanoxin; procainamide or procan, procanbid, propafenone, rythmal, sotalol; * current use of medicines which prolong the qt interval including: * antimicrobials: levofloxacin, ciprofloxacin, moxifloxacin, azithromycin, clarithromycin, erythromycin, ketoconazole, itraconazole, or mefloquine * antidepressants: amitriptyline, citalopram, desipramine, escitalopram, imipramine, doxepin, fluoxetine, wellbutrin, or venlafaxine * antipsychotic or mood stabilizers: haloperidol, droperidol, lithium, quetiapine, thioridazine, ziprasidone * methadone * sumatriptan, zolmitriptan

- current hospitalization - allergy to hydroxychloroquine - retinal eye disease - known glucose-6 phosphate dehydrogenase (g-6-pd) deficiency - known chronic kidney disease, stage 4 or 5 or receiving dialysis - structural or ischemic heart disease - personal or family history of prolonged qt syndrome - weight < 50 kg - known porphyria - current use of: hydroxychloroquine or cardiac medicines of: flecainide, tambocor; amiodarone, cordarone, pacerone; digoxin or digox, digitek, lanoxin; procainamide or procan, procanbid, propafenone, rythmal, sotalol; - current use of medicines which prolong the qt interval including: - antimicrobials: levofloxacin, ciprofloxacin, moxifloxacin, azithromycin, clarithromycin, erythromycin, ketoconazole, itraconazole, or mefloquine - antidepressants: amitriptyline, citalopram, desipramine, escitalopram, imipramine, doxepin, fluoxetine, wellbutrin, or venlafaxine - antipsychotic or mood stabilizers: haloperidol, droperidol, lithium, quetiapine, thioridazine, ziprasidone - methadone - sumatriptan, zolmitriptan

- current hospitalization - allergy to hydroxychloroquine - retinal eye disease - known glucose-6 phosphate dehydrogenase (g-6-pd) deficiency - known chronic kidney disease, stage 4 or 5 or receiving dialysis - structural or ischemic heart disease - personal or family history of prolonged qt syndrome - weight < 50 kg - known porphyria - current use of: hydroxychloroquine or cardiac medicines of: flecainide, tambocor; amiodarone, cordarone, pacerone; digoxin or digox, digitek, lanoxin; procainamide or procan, procanbid, propafenone, rythmal, sotalol; - current use of medicines which prolong the qt interval including: - antimicrobials: levofloxacin, ciprofloxacin, moxifloxacin, azithromycin, clarithromycin, erythromycin, ketoconazole, itraconazole, or mefloquine - antidepressants: amitriptyline, citalopram, desipramine, escitalopram, imipramine, doxepin, fluoxetine, wellbutrin, or venlafaxine - antipsychotic or mood stabilizers: haloperidol, droperidol, lithium, quetiapine, thioridazine, ziprasidone - methadone - sumatriptan, zolmitriptan