One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine (Plaquenil), a chloroquine derivative. It is used to treat many diseases including malaria, rheumatoid arthritis and systemic lupus erythematosus. Sulfasalazine vs plaquenil Plaquenil to treat skin rash Mechanism of action of chloroquine in malaria treatment Feb 19, 2020 Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Here are 10 things to keep in mind when using Plaquenil Take it on a regular schedule, meaning at the same time each day. Take Plaquenil EXACTLY as prescribed by your physician. Do not stop taking the medication without first speaking to your doctor. Taking Hydroxychloroquine with food and/or milk can help prevent stomach upset. Chronic toxicity should be considered when conduction disorders bundle branch block/AV heart block or biventricular hypertrophy are diagnosed. If cardiotoxicity is suspected, prompt discontinuation of Plaquenil may prevent life-threatening complications. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Plaquenil toxicity heart Hydroxychloroquine-Induced Retinal Toxicity - American., Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus What is chloroquine aralenHydroxychloroquine vision Abstract. Background The American Academy of Ophthalmology recommendations on screening for chloroquine CQ and hydroxychloroquine HCQ retinopathy are revised in light of new information about the prevalence of toxicity, risk factors, fundus distribution, and effectiveness of screening tools. Recommendations on Screening for Chloroquine and.. Plaquenil hydroxychloroquine – New Warnings. Hydroxychloroquine-Induced Cardiomyopathy Circulation Heart Failure. Find information about common, infrequent and rare side effects of Plaquenil Oral. Oct 15, 2012 Hydroxychloroquine HCQ is a 4-aminoquinoline which differs from chloroquine CQ in the addition of a hydroxyl group. Initially used as antimalarials, both drugs have now become mainstays in the management of rheumatic diseases principally systemic lupus erythematosus SLE and rheumatoid arthritis RA. A 65 year old man presented with acute decompensated HF. He had a history of rheumatoid arthritis, and had been treated with hydroxychloroquine for the last 8 years. Echocardiography revealed a left ventricular ejection fraction of 25%, with diffuse hypokinesis.