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. Using chloroquine to treat glioblastoma Plaquenil and nodules Can i just stop taking hydroxychloroquine Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Most common side effects over time * 1 month Toxic skin eruption skin breakdown due to toxic substance Rash. Rash maculo-papular red area on the skin that is covered with small confluent bumps Urticaria rash of round, red welts on the skin that itch intensely Skin Hyperpigmentation with Hydroxychloroquine Hydroxychloroquine Plaquenil is a common trade name is an anti-inflammatory oral medication that is commonly used to treat many autoimmune diseases. In the hair clinic, we use it for diseases such as lichen planopilaris, frontal fibrosing alopecia, pseudopelade and discoid lupus. 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. Plaquenil skin rash side effects Plaquenil hydroxychloroquine 200mg is it causing itchy skin., Common Plaquenil side effects a study from FDA data. Is plaquenil used to treat lupusPlaquenil eye testingHydroxychloroquine sulphate 200mg tabletsQue es el plaquenil MORE COMMON side-effects include Nausea & diarrhea – Plaquenil agrees with most people. Rarely it can cause an upset stomach or diarrhea. Skin rash – Plaquenil can rarely cause a rash. Patients who experience this rare side effect should stop taking this medicine and contact their doctor. Headaches – Plaquenil can rarely cause a headache. Plaquenil – RheumInfo. Skin Pigmentation with Hydroxychloroquine Plaquenil.. Hydroxychloroquine - Wikipedia. Plaquenil hydroxychloroquine 200mg is it causing itchy skin rash? My lupus flares are Skin manifestation only malar rashplus fatigue. But ESR n CRP keeps coming Normal including ANA. On plaquenil hydroxychloroquine. Was dx not correct? I am on Metrotexate 30 mg a week, 2 Plaquenil hydroxychloroquine a day, 5 mg Prednisone. Get emergency medical help if you have signs of an allergic reaction hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more.