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. Hydroxychloroquine keratopathy Plaquenil tabs Plaquenil bronchospasm 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. What are some other side effects of Plaquenil? All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away Dizziness. Headache. Feeling nervous and excitable. Not hungry. Tell your doctor right away if you have any serious side effects, including arm/leg/back pain, slow heartbeat, symptoms of heart failure such as shortness of breath, swelling ankles/feet. If you notice any other effects, check with your healthcare professional. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Other side effects not listed may also occur in some patients. Plaquenil side effects heart Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Plaquenil Indications, Side Effects, Warnings - Plaquenil liver kidney lymePlaquenil examUsos del plaquenil Check with your doctor immediately if any of the following side effects occur Incidence not known. Blistering, peeling, loosening of the skin blurred vision or other vision changes chest discomfort, pain, or tightness cough or hoarseness dark urine decreased urination defective color vision diarrhea difficulty breathing Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. Plaquenil Oral Uses, Side Effects, Interactions.. Will you have Heart failure with Plaquenil - eHealthMe. Many doctors disagree about the effects of plaquenil on the arthritis. It does help in about 60 % of the cases of arthritis by significantly reducing the pain. However, about 20 – 30 percent of people stop using it because of the side effects. Side effects include digestive problems, skin rash and disorders of skin pigmentation. Common Side Effects of Plaquenil. Tell your doctor if any of the following side effects, as they may be indications of a more serious reaction Headache; Loss of appetite; Dizziness; Nausea Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells anemia.