Please review the following URL and make sure that it is spelled correctly. Chloroquine is the generic form of the brand-name prescription medicine Aralen, which is used to prevent and treat malaria — a mosquito-borne disease caused by a parasite — and to treat amebiasis, an infection of the intestines caused by a parasite. Plaquenil 200 in pregnancy Plaquenil sle It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis or juvenile idiopathic arthritis and other autoimmune diseases. It is not clear. A rare complication of the commonly used rheumatoid arthritis drug hydroxychloroquine Plaquenil is injury to the retina the light-sensing portion of the back of the eye. The earliest sign of retinal changes from hydroxychloroquine is a decreased ability to distinguish between red and green colors. Hydroxychloroquine is an antimalarial drug which is relatively safe and well-tolerated agent for the treatment of rheumatoid arthritis. Chloroquine is another antimalarial agent that is also sometimes used. Your doctor will probably want to order frequent tests to check your body's response to chloroquine. This medicine is also sometimes given off-label to help the following conditions: Also, let your doctor know if you drink large amounts of alcohol before starting on this medicine. Rheumatoid arthritis chloroquine Chloroquine MedlinePlus Drug Information, Rheumatoid Arthritis 17 Signs of Serious Complications Hydroxychloroquin raWhat are the ingredients in plaquenil Find patient medical information for Hydroxychloroquine Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Rheumatoid Arthritis Treatment Options Johns Hopkins.. CHLOROQUINE DIPHOSPHATE IN RHEUMATOID ARTHRITIS*. Dec 01, 2011 Rheumatoid arthritis RA is the most common inflammatory arthritis, with a lifetime prevalence of up to 1 percent worldwide.1 Onset can occur at any age, but peaks between 30 and 50 years.2. Originally, hydroxychloroquine was used to prevent and treat malaria and was considered very effective. Now it is generally used for rheumatoid arthritis, but it has also been shown to work well for juvenile arthritis, some lupus symptoms, and other types of autoimmune conditions. Chloroquine enters the red blood cell by simple diffusion, inhibiting the parasite cell and digestive vacuole. Chloroquine then becomes protonated to CQ2+, as the digestive vacuole is known to be acidic pH 4.7; chloroquine then cannot leave by diffusion.