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 side effects subconjunctival hemorrhage Chloroquine itch Aug 26, 2013 Hair bleaching, hair loss, skin pigmentation, rash and itching are recognized skin adverse reactions of plaquenil hydroxychloroquine. These reactions tend to be worse if a patient is taking other medications that have similar skin toxicity. Please consult a dermatologist to ensure skin lesions are not psoriatic because Plaquenil hydroxychloroquine use needs special precautions in psoriasis. 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 Plaquenil is generally well-tolerated, but side effects are possible. Common side effects linked to Plaquenil include nausea and diarrhea. Taking the medication with food eases nausea for most people taking the drug. Less common side effects include skin rashes, hair thinning, and weakness. 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 Hydroxychloroquine - Wikipedia, Common Plaquenil side effects a study from FDA data. Fies the itching frim plaquenil stopHydroxychloroquine phosphate 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. Plaquenil Hydroxychloroquine Side effects, Images, Uses.. Taking Plaquenil for Rheumatoid Arthritis. Hydroxychloroquine Sulfate Rash Reports - DrugInformer. The most common side effects are nausea and diarrhea, which often improve with time. Less common side effects include rash, changes in skin pigment such as darkening or dark spots, hair changes, and muscle weakness. Rarely, hydroxychloroquine can lead to anemia in some individuals. Find information about common, infrequent and rare side effects of Plaquenil Oral. Less common side effects Skin rashes or changes in skin color. Thinning hair. Weakness. Irregular heartbeat. Mental/mood changes. Arm/leg/back pain. Anxiety. Depression. Ringing in the ears or hearing loss. Worsening of skin conditions If you have psoriasis, Plaquenil may make your.