It’s also referred to as knee instability or weak knees. While it’s often accompanied by pain, this isn’t always the case. Autoimmune plaquenil Chloroquin toxicity Chloroquine maculopathy emedicine PLAQUENIL has been shown to cause severe hypoglycemia including loss of consciousness that could be life threatening in patients treated with and without antidiabetic medications. Patients treated with PLAQUENIL should be warned about the risk of hypoglycemia and the associated clinical signs and symptoms. Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells anemia. Plaquenil is generally well-tolerated, but side effects are possible. Common side effects linked to Plaquenil include nausea and diarrhea. Taking the medication with food eases nausea for most people taking the drug. Less common side effects include skin rashes, hair thinning, and weakness. However, if it keeps happening, it could be a sign of something else. If it’s only happened once or twice, you may have just stumbled. Plaquenil knee weakness PLAQUENIL®, Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria Plaquenil 200 mg wikipediaChloroquine primaquine babesia forumBuy aralen dosage This medication relieved my joint pain, muscle weakness, myositis, pleuritic pain, and fatigue after about 2-3 months of starting the medication. Plaquenil oral Reviews and User Ratings Effectiveness, Ease.. Taking Plaquenil for Rheumatoid Arthritis. Plaquenil can cause back and leg pain? What type?. Find information about common, infrequent and rare side effects of Plaquenil Oral. Take this medication with a meal or a glass of milk to prevent stomach upset. Common side effects include nausea, loss of appetite, headache, and diarrhea. Plaquenil can cause blurred vision and dizziness. Do not drive or operate heavy machinery until you know how it affects you. Jun 25, 2013 Call your doctor at once if you have a serious side effect such as muscle weakness, twitching, or uncontrolled movement; loss of balance or coordination; blurred vision, light sensitivity, seeing halos around lights; pale skin, easy bruising or bleeding; confusion, unusual thoughts or behavior; or seizure convulsions.