- allergy or intolerance to hydroxychloroquine (plaquenilr); - weight less than 85 pounds; - eye disease affecting the retina; - severe kidney or liver disease; - g6pd-deficiency; - porphyria; - long qtc ekg abnormality or family history of this; - other major ekg abnormalities; - taking medications that can affect the qt interval including flecainide, amiodarone, digoxin, procainamide, propafenone, sotalol, quinidine, dofetilide, levofloxacin, ciprofloxacin, azithromycin, erythromycin, amitriptyline, doxepin, desipramine, imipramine, fluoxetine, sertraline, venlafaxine, quetiapine, haloperidol, droperidol, thioridazine, ziprasidone, furosemide, sumatriptan or zolmitriptan, cisapride, arsenic, dolasetron, or methadone; - current pregnancy; - current hospitalization; - symptomatic with fever or cough; - lack of access to a smartphone

- allergy or intolerance to hydroxychloroquine (plaquenilr); - weight less than 85 pounds; - eye disease affecting the retina; - severe kidney or liver disease; - g6pd-deficiency; - porphyria; - long qtc ekg abnormality or family history of this; - other major ekg abnormalities; - taking medications that can affect the qt interval including flecainide, amiodarone, digoxin, procainamide, propafenone, sotalol, quinidine, dofetilide, levofloxacin, ciprofloxacin, azithromycin, erythromycin, amitriptyline, doxepin, desipramine, imipramine, fluoxetine, sertraline, venlafaxine, quetiapine, haloperidol, droperidol, thioridazine, ziprasidone, furosemide, sumatriptan or zolmitriptan, cisapride, arsenic, dolasetron, or methadone; - current pregnancy; - current hospitalization; - symptomatic with fever or cough; - lack of access to a smartphone