It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Plaquenil heavy legs Plaquenil palindromic rheumatism Hydroxychloroquine white pill Plaquenil heart rate Plaquenil. Uses. Hydroxychloroquine is used to prevent or treat malaria infections caused by mosquito bites. It does not work against certain types of. Side Effects. Precautions. Interactions. Check with your doctor immediately if any of the following side effects occur Incidence not known. Blistering, peeling, loosening of the skin blurred vision or other vision changes chest discomfort, pain, or tightness cough or hoarseness dark urine decreased urination defective color vision diarrhea difficulty breathing BACKGROUND Hydroxychloroquine is used for the treatment of rheumatoid arthritis RA and systemic lupus erythematosus SLE. Long term studies have shown a high rate of termination of hydroxychloroquine treatment in patients with RA. 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. Long term effects of plaquenil Hydroxychloroquine Side Effects, Dosage, Uses, and More, Hydroxychloroquine Oral Route Side Effects - Mayo Clinic Synthesis of chloroquine phosphateLariam vs plaquenilChloroquine and g6pd Plaquenil is taken by mouth with food or milk to prevent stomach problems. When taking this medication, some patients may experience upset stomach, nausea, loss of appetite, headaches or dizziness. Sometimes, taking high doses or long-term treatment of Plaquenil can lead to vision problems. Focus on Eyes Long-term Plaquenil intake can affect your.. Continuation of long term treatment with hydroxychloroquine.. Long-term effects of plaquenil - Doctor answers on.. Sep 13, 2019 Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Hydroxychloroquine Side Effects. headache with chest pain and severe dizziness, fainting, fast or pounding heartbeats; very slow heart rate, weak pulse; muscle weakness, numbness or tingling; low blood sugar--headache, hunger, sweating, irritability, dizziness, nausea, fast heart rate, and feeling. RARE side effects. If experienced, these tend to have a Severe expression. Abnormal Liver Function Tests. Acute Liver Failure. Acute Pustular Eruptions On Skin. Bronchospasm. Decreased Blood Platelets. Decreased White Blood Cells.