Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Plaquenil lower seizure threshold Plaquenil classificatin Plaquenil hydroxychloraquine doseage Chloroquine phosphate for quarantine marine fish Although they are uncommon, Plaquenil has side effects that may affect your eyes. Plaquenil and Your Eyes In some people, Plaquenil can cause a condition called hydroxychloroquine retinopathy, often referred to as bulls-eye maculopathy. Sep 13, 2019 For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking hydroxychloroquine and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. Call your doctor at once if you have Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Does hydroxychloroquine cause eye problems Hydroxychloroquine - Side Effects, Dosage, Interactions., Hydroxychloroquine Side Effects Common, Severe, Long Term. Plaquenil 200 mg canadaChloroquine dose in rheumatoid arthritisWhat can i take for heartburn with plaquenilLupus miliaris disseminatus faciei hydroxychloroquine For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Hydroxychloroquine Side Effects Common, Severe, Long Term -. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Feb 20, 2018 Focus on Eyes Long-term Plaquenil intake can affect your vision. Taking high doses or long-term treatment of Plaquenil, an anti-malaria drug used to treat lupus, can lead to vision problems. Aug 14, 2017 Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. 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. This toxicity affects a part of the eye called the retina and can lead to color blindness and even loss of vision. An.