It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Can hydroxychloroquine affect synthroid absorption Symptoms of plaquenil toxicity Can you take advil with plaquenil Hydroxychloroquine belongs to a group of medicines known as antimalarials. It works by preventing or treating malaria, a red blood cell infection transmitted by the bite of a mosquito. However, this medicine is not used to treat severe or complicated malaria. Substitutes and alternatives to Plaquenil hydroxychloroquine for uses like Rheumatoid arthritis, Lupus and Malaria Plaquenil hydroxychloroquine Alternatives & Similar Drugs - Skip to full site navigation May 24, 2018 Hydroxychloroquine Plaquenil can treat mild mixed connective tissue disease and might prevent flare-ups. Calcium channel blockers. This category of medications, including nifedipine Procardia and amlodipine Norvasc, help relax the muscles in the walls of your blood vessels and may be used to treat Raynaud's disease. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis (or juvenile idiopathic arthritis) and other autoimmune diseases. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. What is a natural medicine to hydroxychloroquine Can you take hydroxychloroquine with antihistamine - Answers, Plaquenil hydroxychloroquine Alternatives & Similar. How to get on hydroxychloroquine 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 also known as juvenile idiopathic arthritis and other autoimmune diseases. It is not clear why hydroxychloroquine is effective at treating autoimmune diseases. PATIENT FACT SHEET Hydroxychloroquine Plaquenil. Mixed connective tissue disease - Diagnosis and treatment.. Hydroxychloroquine – what you can expect when starting treatment. 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 lupus, rheumatoid arthritis, and others. 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. In children, dosage. Hydroxychloroquine is one of the medications that can be a valuable part of your treatment plan. What Conditions Does This Treat? 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.