Weakness, swelling, and pain are the most common myositis symptoms. Myositis causes include infection, injury, autoimmune conditions, and drug side effects. Chloroquine prevention malaria Hydroxychloroquine sudden neck stiff neck pain In rare cases, Plaquenil can cause cardiomyopathy, a chronic disease of the heart muscle. If you're taking Plaquenil for an autoimmune condition, your symptoms should begin to improve after a few. Plaquenil hydroxychloroquine "I have dermatomyositis and have been taken Prednisone and Plaquenil. At first the combo was helping with the muscle pain and rash. After 2 wks on the Plaquenil I got a sunburn itchy rash all over my body. I also have bruise/like spots where the old rash was." Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form. What Are Side Effects of Plaquenil? Common side effects of Plaquenil include. nausea, vomiting, stomach pain or cramps, loss of appetite, weight loss, diarrhea, dizziness, spinning sensation, headache, Myositis is caused by any condition that leads to inflammation in the muscles. Treatment of myositis varies according to the cause. Plaquenil for dermatomyositis muscle weakness How Lupus Affects the Muscles, Tendons and Joints Lupus., User Reviews for Hydroxychloroquine to treat. - Plaquenil interactions herbsChloroquine sle dose Plaquenil side effects. Get emergency medical help if you have signs of an allergic reaction to Plaquenil hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye. Plaquenil Uses, Dosage & Side Effects -. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Hydroxychloroquine and Colchicine Induced Myopathy The.. Hydroxychloroquine Plaquenil is an antimalarial drug that also has anti-inflammatory qualities and is used to treat certain autoimmune diseases, including rheumatoid arthritis and Sjögren’s disease. Hydroxychloroquine is take orally by mouth. Common side effects include vomiting, headache, changes in vision, and muscle weakness. Frequency not reported Skeletal muscle myopathy or neuromyopathy leading to progressive weakness and atrophy of proximal muscle groups, depression of tendon reflexes and abnormal nerve conduction studies. Myopathy may be reversible after therapy discontinuation, but recovery may take many months. Nervous system Treatment is similar to that for the muscle disease polymyositis. Avoidance of sun exposure during peak hours and use of sunblock and protective clothing are recommended to avoid exacerbating the skin aspects of the disease. Children with dermatomyositis are treated with the same medications and therapies as adults.