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. 2020 Apr 22;102(6):1184–1188. doi: 10.4269/ajtmh.20-0290

Table 1.

Main side effects of Chloroquine and Hydroxychloroquine3136

System Chloroquine Hydroxychloroquine
Cardiovascular QTc prolongation and cardiomyopathy QTc prolongation and cardiomyopathy
Gastrointestinal Nausea, vomiting, and abdominal pain Nausea, vomiting, and abdominal pain
Dermatologic Pruritis Pruritis
Musculoskeletal Myopathies and myasthenia-like syndromes Sensorimotor disorders
Nervous Seizures, tinnitus, and dystonia Headache, dizziness, and tinnitus
Psychiatric Depression and psychosis Emotional lability
Ocular Maculopathy and macular degeneration, and retinopathy Blurred vision and retinopathy
Metabolic Hypokalemia, hypercalcemia, and hypoglycemia Hypoglycemia