Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Hydroxychloroquine vision changes Hydroxychloroquine brand name philippines Available doses of hydroxychloroquine Common side effects include vomiting, headache, changes in vision and muscle weakness. Severe side effects may include allergic reactions. 1 It does not appear to be safe during pregnancy. 3 A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including rash, itching/swelling especially of the face/tongue/throat, dizziness, trouble breathing. This is not a complete list of possible side effects. Common Side Effects of Plaquenil. Tell your doctor if any of the following side effects, as they may be indications of a more serious reaction Headache; Loss of appetite; Dizziness; Nausea Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Effects of plaquenil in pregnancy Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Plaquenil Oral Uses, Side Effects, Interactions, Pictures. Plaquenil macular 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. Taking Plaquenil for Rheumatoid Arthritis. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Systematic review of hydroxychloroquine use in pregnant.. 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. Rare but potentially serious eye toxicity can occur. Jun 30, 2015 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. 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. Check with your health care professional if any of the following side effects continue or are bothersome or.