It does not work against certain types of malaria (chloroquine-resistant). The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Psoriasis from generic plaquenil Chloroquine is used for what Use of plaquenil for osteoarthritis Major neurological side effects confusion, seizures – These are quite rare, but if you experience them, alert your doctor immediately. Exacerbation of psoriasis – If you have psoriasis, Plaquenil may make your condition worse. Talk to your doctor if you have this condition. Hydroxychloroquine typically is very well tolerated. Serious side effects are rare. 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. 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 This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications have not worked or cannot be used. Discuss the most recent information with your doctor before traveling to areas where malaria occurs. Adverse effect of hydroxychloroquine HYDROXYCHLOROQUINE - ORAL Plaquenil side effects., Hydroxychloroquine Plaquenil Plaquenil depressedDoes chloroquine increase cell viability resazurin If you are taking hydroxychloroquine for symptoms of rheumatoid arthritis, your symptoms should improve within 6 months. If your rheumatoid arthritis symptoms do not improve, or if they worsen, stop taking the drug and call your doctor. Once you and your doctor are sure the drug works for you. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. Hydroxychloroquine Uses, Dosage & Side Effects -. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes. Erectile dysfunction drugs cause a range of side effects that are common, dosage-dependent and, thus far, fully reversible. They include changes in color and light perception, blurred vision, conjunctival hyperemia, ocular pain and photophobia. 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.