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. Plaquenil loss of appetite Plaquenil and type 1 diabetes Plaquenil against scabies Hydroxychloroquine side effects. Get emergency medical help if you have signs of an allergic reaction to hydroxychloroquine 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. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. What are the possible side effects of hydroxychloroquine? Side effects are uncommon; however, a few people may develop a rash, indigestion, diarrhoea, headache, blurred vision, darkening of the skin, or bleaching of the hair. Hydroxychloroquine can aggravate pre-existing psoriasis. 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. Hydroxychloroquine side effects uk Plaquenil-Hydroxychloroquine sulfate 200mg Film-coated., Long-Term Side Effects of Plaquenil for Rheumatoid. Chloroquine phosphate how long do side effects lastWhat if hydroxychloroquine doesn t workHow long does chloroquine take to work For the Consumer. Continuing ringing or buzzing or other unexplained noise in the ears. feeling of constant movement of self or surroundings. irritability. nausea. nervousness. nightmares. sensation of spinning. shakiness and unsteady walk. uncontrolled eye movements. unsteadiness, trembling, or. Hydroxychloroquine Side Effects -. HYDROXYCHLOROQUINE - uk. Hydroxychloroquine Side-effects, uses, time to work. What are the possible side effects of hydroxychloroquine? Side effects are uncommon; however, a few people may develop one of the following rash, indigestion, diarrhoea, headache, blurred vision, cramps or muscle weakness, darkening of the skin, or bleaching of the hair. Rheumatoid Arthritis. The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. What are some other side effects of Hydroxychloroquine? 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.