Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Faf in plaquenil toxicity Ophthalmologist for plaquenil Medical reference laboratory providing esoteric and genetic testing services, test selection guidance, result interpretation references, and continuing education for clients worldwide. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria 2. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. According to the Mayo Clinic, it can take up to six months' constant use before an effect is seen in RA 1. Hydroxychloroquine is commonly used alongside other disease-modifying drugs including methotrexate – especially for rheumatoid arthritis. However, some drugs can interact with hydroxychloroquine. Indigestion remedies for example, antacids including some over-the-counter preparations can stop hydroxychloroquine being absorbed. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Hydroxychloroquine site mayoclinic.org HCQ - Clinical Hydroxychloroquine, Serum, Long-Term Side Effects of Plaquenil for Rheumatoid. Aralen hydrochlorideChloroquine in lentiviral transductionPlaquenil treatment for sjogren& 39Plaquenil and risperidone Hydroxychloroquine is used to treat discoid lupus erythematosus DLE or systemic lupus erythematosus SLE or lupus. It is also used to treat acute and chronic rheumatoid arthritis. This medicine is available only with your doctor's prescription. This product is available in the following dosage forms Hydroxychloroquine Oral Route Description and. - Mayo Clinic. Hydroxychloroquine Side-effects, uses, time to work. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis.. Hydroxychloroquine can lower the seizure threshold; therefore, the activity of antiepileptic drugs may be impaired with concomitant use. Fingolimod Major Avoid coadministration of hydroxychloroquine and fingolimod. Hydroxychloroquine increases the QT interval and should not be administered with other drugs known to prolong the QT interval. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria.