It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Dr gave me plaquenil to sample Missed dose of plaquenil How long to take plaquenil for lupus Plaquenil visual side effects Serious side effects and their symptoms can include the following blurred vision or other vision changes. ringing in your ears or hearing loss. angioedema, or rapid swelling of your skin. hives. mild or severe bronchospasm that causes trouble breathing. sore throat. unusual bleeding or. Common Plaquenil side effects may include headache, dizziness, ringing in your ears; nausea, vomiting, stomach pain; loss of appetite, weight loss; mood changes, feeling nervous or irritable; skin rash or itching; or. hair loss. An eye exam is recommended at the start of treatment to detect any existing vision problems; follow-up tests are needed to catch retinal damage in the earliest stages, before symptoms appear. If found later, damage to the eye may be irreversible, even if the medication is stopped. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil eye risks Hydroxychloroquine Plaquenil Toxicity and., Plaquenil Uses, Dosage & Side Effects - Chloroquine method of action lysosomeChloroquine effect on gametocytesChloroquine phosphate uses in hindi Feb 19, 2020 As PLAQUENIL may enhance the effects of a hypoglycemic treatment, a decrease in doses of insulin or antidiabetic drugs may be required. Drugs That Prolong QT Interval And Other Arrhythmogenic Drugs. PLAQUENIL prolongs the QT interval and should not be administered with other drugs that have the potential to induce cardiac arrhythmias. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Wrong Hydroxychloroquine Dose Is Common, Putting Eyes at Risk. Rx Side Effects New Plaquenil Guidelines and More - American.. One of the reasons that physicians feel comfortable in prescribing Plaquenil is its low risk to benefit ratio. This means that the side effects of Plaquenil are mild and infrequent compared with its potential benefits. As with any medication, allergic reactions including skin rashes and non-allergic reactions can occur. One of the most serious side effects is a toxicity in the eye generally with chronic use. People taking 400 mg of hydroxychloroquine or less per day generally have a negligible risk of macular toxicity, whereas the risk begins to go up when a person takes the medication over 5 years or has a cumulative dose of more than 1000 grams. Plaquenil and your eyes. A rare side effect of Plaquenil is damage to the eye's retina. The retina is the light-sensitive tissue at the back of the eye. Using Plaquenil for a long period of time may harm the retina, causing serious vision loss. People with retinal damage from Plaquenil are not aware at first that they are losing vision.