She suffered from Sjogren syndrome and inflammatory arthritis and was currently treated with prednisone and methotrexate. She was previously treated with hydroxychloroquine (Plaquenil) 200mg bid (6.5mg/kg) for 10 years, which was stopped one year prior to presentation. Guttate psoriasis plaquenil Is hydroxychloroquine an opiate Chloroquine base dose Plaquenil Hydroxychloroquine may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Drugs A-Z Pill Identifier Supplements Symptom Checker Diseases Dictionary Media Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Diagnosis Hydroxychloroquine-induced retinal toxicity Discussion. Chloroquine CQ and hydroxychloroquine Plaquenil HCQ have been used for many years, initially for the treatment of malaria but now more commonly for the treatment of inflammatory diseases such as rheumatoid arthritis and lupus 1. Review of systems: Blurred vision, halos, dry eye, dry mouth, gastroesophageal reflux, joint pain Pupils: Reactive to light in each eye from 5 mm in the dark to 2 mm in the light. Extraocular movements: Full, both eyes (OU) Confrontation visual fields: Full OU Intra-ocular pressure The optic nerves appeared healthy with a 0.3 cup-to-disc ratio. Past Ocular History: None Medical History: Sjogren syndrome and inflammatory arthritis, supraventricular tachycardia, anxiety, depression, peptic ulcer disease Medications: prednisone, methotrexate, amitriptyline, ranitidine, estradiol, tizanidine, diltiazem, Restasis Allergies: codeine, droperidol Family History: heart disease, arthritis, cancer Social History: occasional alcohol but no tobacco or intravenous drug use. Electroretinogram for plaquenil Electroretinography - Medical Clinical Policy Bulletins., Plaquenil Side Effects Common, Severe, Long Term - Can hydroxychloroquine cause diarrheaDose of hydroxychloroquine Electroretinography ERG is an eye test that detects function of the retina the light-detecting portion of the eye. The retina is comprised of layers of specialized cells, including photoreceptors rods and cones, that detect light and ganglion cells that transmit images to the brain. Electroretinography What Is an ERG Procedure?. Hydroxychloroquine Plaquenil Toxicity and Recommendations.. The Electroretinogram and Electro-oculogram Clinical.. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. To describe the changes revealed by multifocal electroretinography ERG in patients taking hydroxychloroquine. PATIENTS AND METHODS Six patients being treated for various inflammatory conditions with hydroxychloroquine for periods ranging from 8 months to 7 years were consecutively evaluated. Plaquenil toxicity first affects small areas of the retina between 5° and 15° from the fovea. Figures 2 and 3 show three patients at different stages of toxicity. Figure 2 bottom right shows a color display of normal mfERGs. The amplitude of the mathematically derived b-wave of the mfERG is displayed in a color scale.