Please review the following URL and make sure that it is spelled correctly. Requested URL: /I-Am-A/Patient-Caregiver/Treatments/... Plaquenil polymyalgia rheumatica Plaquenil and nephritis Sep 15, 2014 Hydroxychloroquine sulfate HCQ, Plaquenil is an analogue of chloroquine CQ, an antimalarial agent, used for the treatment of systemic lupus erythematosus, rheumatoid arthritis and other autoimmune disorders. Its use has been associated with severe retinal toxicity, requiring a discontinuation of therapy. This article is from June 2011 and may contain outdated material. Download PDF. Many systemic medications may cause retinal toxicity. One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine Plaquenil, a chloroquine derivative. Symptoms and SignsMechanism of ToxicityMedication DosageRisk For ToxicityMonitoring GuidelinesConclusion Additionally, another exception occurred while executing the custom error page for the first exception. Description: An exception occurred while processing your request. Plaquenil therapy and eyes New Plaquenil Guidelines -, Hydroxychloroquine-Induced Retinal Toxicity - American Academy of. Maxalt plaquenil interactionIs hydroxychloroquine safe to take during pregnancyChloroquine krasMilk thistle and plaquenilPlaquenil risks Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Hydroxychloroquine-Induced Retinal Toxicity -. Hydroxychloroquine Side Effects, Dosage, Uses, and More. How to use Plaquenil. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. It is taken by mouth. 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. It is now considered for new disease applications in diabetes, heart disease and adjunct cancer therapies 2.