Her rheumatologist instructed her to undergo a baseline ocular examination prior to initiating Plaquenil (hydroxychloroquine, Sanofi-Aventis) therapy. Toxic maculopathy associated with chloroquine use was first documented in the literature five decades ago.1 In the United States, Plaquenil––an analog to chloroquine––is used to treat a variety of conditions, including rheumatoid arthritis, lupus and several distinct inflammatory disorders. Although the incidence of macular toxicity is infrequent with Plaquenil use (at a dosage of 200mg or 400mg q.d.), its visual impact can be devastating. Chloroquine mechanism of action animation Plaquenil generic 200 mg coupon Reddit plaquenil Chloroquine base dose If you are taking hydroxychloroquine for a long period of time, your doctor will recommend frequent eye exams. It is very important that you keep these appointments. Hydroxychloroquine can cause serious vision problems. If you experience any changes in vision, stop taking hydroxychloroquine and call your doctor immediately. Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription. Minimum treatment guidelines recommend that every patient taking Hydroxychloroquine Plaquenil should have an annual eye exam after being on the medication for 5-years. But because your vision is priceless, Stonewire recommends annual eye health exams to all our patients on these medications and potentially we may escalate the frequency to every 6-months after 5-years. 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 ophthalmologist eye specialist often can detect changes in the retina that suggest toxicity before serious damage occurs. Initially, central visual acuity may be unaffected, but the patient may notice related paracentral scotomas that often interfere with reading. The associated classic retinal toxicity is described as a bull’s eye maculopathy (ring of depigmented retinal pigment epithelium that spares the foveal area). Do you need a baseline eye exam before taking hydroxychloroquine The Risk of Retinal Toxicity with Plaquenil, Stonewire Optometry-Blog-Hydroxychloroquine Why you need an. Chloroquine actionChloroquine tablets nhsWhat drugs interact with plaquenilAntimalarial plaquenil May 24, 2017 As I mentioned before, hydroxychloroquine eye toxicity is not reversible. Once it happens, it happens. So the trick is to catch it early. Fortunately, the changes occur VERY slowly. The American Academy of Ophthalmology recommends the following Obtain a baseline eye exam within the first year of starting hydroxychloroquine to document any complicating eye problem. Will hydroxychloroquine hurt my eyes? - RheumDoctor. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria. Hydroxychloroquine Indications, Side Effects, Warnings.. Hydroxychloroquine is a relatively safe medication but it is recommended to have regular monitoring by an ophthalmologist eye doctor while taking this drug. Before you begin taking Plaquenil, tell you doctor your complete medical history including any eye problems that may have come from other aminoquinolines other antimalarial drugs such as chloroquine. I knew I needed regular eye exams while taking hydroxychloroquine, but was surprised to find out that there were some special tests that needed to be done related to drug side effects. This only became clear after a year's treatment with the drug. Aug 30, 2011 Newer guidelines state that daily dose 5mg/kg of real weight/day can lead to toxicity. Retinal toxicity is irreversible and can progress after cessation of hydroxychloroquine, thus early screening is important to limit potential vision loss. Baseline screening and annual screening after five years is recommended.