Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Plaquenil (hydroxychloroquine) with all of your drugs and health problems. Retinal changes with the use of hydroxychloroquine Plaquenil and depression Does plaquenil keep you awake Ra treatment plaquenil methotrexate I, too, have PSA and the spondylitis type. I am currently on Plaquenil for the PSA as it works for my fingers and have been on Sulfasalazine for three weeks and am up to the 2 pills twice a day for the last few days for my SI joint. If you have an allergy to hydroxychloroquine or any other part of this drug. If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had. If you have had any eye changes or changes in eyesight due to this drug or drugs like this one. If you have. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. For all uses of Plaquenil (hydroxychloroquine): WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Do not start, stop, or change the dose of any drug without checking with your doctor. Plaquenil pour psoriasis Plaquenil Use in Autoimmune Diseases, Hydroxychloroquine Memorial Sloan Kettering Cancer Center Honduras chloroquine sensitivePlaquenil sideceffectsDrugs that interact with plaquenilPlaquenil guidelines review of optometry Certain skin problems e.g. atopic dermatitis, psoriasis Hydroxychloroquine may cause a condition that affects the heart rhythm QT prolongation. QT prolongation can rarely cause serious rarely fatal fast/irregular heartbeat and other symptoms such as severe dizziness, fainting that need medical attention right away. Plaquenil 200 mg tablet Kaiser Permanente. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Hydroxychloroquine MyPsoriasisTeam. Antimalarials Plaquenil, Quinacrine, chloroquine and hydroxychloroquine may cause a flare of psoriasis, usually two to three weeks after the drug is taken. Hydroxychloroquine is the least likely to cause side effects. Psoriasis and lupus are both autoimmune disorders. They have some symptoms in common, but these conditions are very different. Learn more about each condition and how to tell the difference. Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form.