You need to not use Hydroxychloroquine if you dislike Plaquenil, or if you have a past history of vision changes or damages to your retina caused by Plaquenil or comparable anti-malaria medicines.

The signs and symptoms of overdosage may consist of headache, drowsiness, visual disturbances, cardiovascular failure, convulsions, hypokalemia, transmission as well as rhythm disorders including QT prolongation, torsade de pointe, ventricular tachycardia and also ventricular fibrillation, followed by abrupt possibly fatal respiratory as well as cardiac apprehension.

Regular exam consisting of screening knee and ankle joint reflexes to spot evidence of muscle weakness is advised for individuals obtaining long-lasting therapy.