Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Chloroquine or prophylaxis Quarantine procedure for saltwater fish chloroquine Eye care specialists provide a valuable service when screening for Plaquenil retinal toxicity and advising the treating physician or rheumatologist with regards to the patient’s risk, safe dosing and appropriate screening procedures. Very rarely, high doses of hydroxychloroquine may damage the retina the layer of cells in the back of the eye that detects light and allows you to see. This is prevented by keeping the dose low. While you are taking hydroxychloroquine annual eye tests may be recommended. Mar 17, 2019 Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Important information. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Hydroxychloroquine eye test Hydroxychloroquine Indications, Side Effects, Warnings., HYDROXYCHLOROQUINE Plaquenil for crohn'sPlaquenil skin rash side effectsPlaquenil farmacias del ahorro Abnormal test is the visual field test, you may be asked to repeat it to make sure of the results. You will be told if any other tests are necessary and when you should be screened again. In cases of possible retinopathy, you will be recommended to continue taking 8 9 Macular Society Eye screening for patients taking hydroxychloroquine Eye screening for patients taking hydroxychloroquine Plaquenil. Hydroxychloroquine Uses, Dosage & Side Effects -. Hydroxychloroquine MedlinePlus Drug Information. The most common place for Hydroxychloroquine to cause a problem is in a ring of the macula surrounding the fovea which is demonstated in the visual field test you can see in the picture above. The black areas are the areas the patinet couldn't see well. 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 is often taken in combination with other drugs such as methotrexate. Are there any reasons I won't be prescribed hydroxychloroquine? Before starting on hydroxychloroquine your doctor may take a blood test to check that your liver and kidneys are working normally, but you won't need any regular blood tests during the treatment.