I took the drug as a treatment for sarcoidosis and one of the side effects is a reduction in white blood cells, which is what has happened to me. Plaquenil is used in the treatment of sarcoidosis but its main use is in the treatment of malaria. Hydroxychloroquine metabolism Hydroxychloroquine and sunlight eyes Does plaquenil cause heartburn Acr hydroxychloroquine 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 Ond, this is a med with known side effects for eyesight. You should have been having eye checkups for Plaquenil at minimum of every year. Here is a quick site to help you check Check Your Eyes, but you really need to see a ophthalmologist not optometrist ASAP. Make sure to tell them you are taking Plaquenil so they do the appropriate tests. Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. For the four years that I took the drug, my eye sight never bothered me and bi-annual eye tests revealed no changes. One of the side effects of taking the drug is that it affects eye sight, and eye tests, especially tests need to be done every six months. Side effects of discontinuing plaquenil What is the correct way to discontinue use of plaquenil?, Had to stop taking Plaquenil - Can i take mucinex d with plaquenilCan metoprolol and plaquenil be taken together SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Hydroxychloroquine MedlinePlus Drug Information. Long-Term Side Effects of Plaquenil for Rheumatoid.. Plaquenil ® hydroxychloroquine – New Warnings • On January 27, 2017, the FDA approved new updates to the. Warnings. section of the Plaquenil hydroxychloroquine drug label regarding cardiac effects, including cardiomyopathy and QT prolongation, and hypoglycemia. • Plaquenil is indicated for the treatment of uncomplicated malaria due to 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. Some patients decide to stop taking statins, a cholesterol-lowering drug, if they experience side effects. A new study tracked how they did.