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. Plaquenil and liver enzymes Omeprazole and plaquenil Aralen hydrochloride Plaquenil and Eye Problems. Plaquenil can cause serious vision problems that aren't always reversible. Tell your doctor immediately if you notice any changes in vision or if you've ever had vision. 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. Do you take Plaquenil for Rheumatoid Arthritis? Plaquenil Side-Effects. What is Plaquenil and how does it affect your eyes? Plaquenil Hydroxychloroquine is a medication that is used often to treat conditions such as Rheumatoid Arthritis, Lupus Sarcoidosis, and additional autoimmune disorders. 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. What does hydroxychloroquine do to your eyes Hydroxychloroquine Uses, Dosage & Side Effects -, What Is Plaquenil? - American Academy of Ophthalmology User reviews of plaquenilPrimary care prescribe plaquenil 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. Hydroxychloroquine - Wikipedia. Plaquenil. Plaquenil & Your Eyes. Taking hydroxychloroquine. If you are already on the screening programme for hydroxychloroquine retinopathy, and your last screening tests were normal, it is very unlikely that your symptoms are due to hydroxychloroquine retinopathy. The next screening visit does not need to happen sooner than planned. However, What to do if you forget to take your Plaquenil. If you miss a dose of Plaquenil, do not make it up or double your next dose. Wait until the next scheduled time, and take your usual dose. What do you do if Plaquenil does not work? After several months your doctor will check your joints for swelling and see how you feel. Take Plaquenil EXACTLY as prescribed by your physician. Do not stop taking the medication without first speaking to your doctor. Taking Hydroxychloroquine with food and/or milk can help prevent stomach upset. If you miss a dose, take it as soon as you remember.