System Organ Classes /Preferred term Number of patients Dose of HCQ sulfate Confounders
Gastrointestinal disorders 5 400 mg/day (when stated) Concomitant lopinavir-ritonavir (3 cases) or amoxicillin-clavulanate (1 case)
Skin disorders 3 200 mg/day Concomitant amoxicillin-clavulanate (in one case)
Investigations/ ECG QT prolonged
28/24
200 – 800 mg/day One case reported the dose of 600 mg 2 times a day (one day prior QT prolongation)
Concomitant QT prolonging drugs (azithromycin, levofloxacin, escitalopram), hypokalaemia, renal failure, pre-existing drug-induced QT prolongation
Eye disorders 3 600 mg/day Cataract operation 3 weeks prior (1 case)