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 primary biliary cirrhosis Malaria prophylaxis for honduras an chloroquine dose Apr 10, 2019 Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Common side effects may include headache, dizziness, ringing in your ears; nausea, vomiting, stomach pain; loss of appetite, weight loss; mood changes, feeling nervous or irritable; skin rash or itching; or. hair loss. Hydroxychloroquine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away headache; dizziness; loss of appetite; nausea; diarrhea; stomach pain; vomiting; skin rash; If you experience any of the following symptoms, call your doctor immediately 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 plaquenil side effects Common and Rare Side Effects for Plaquenil Oral, Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine. Plaquenil bruising Many people using this medication do not have serious side your doctor immediately if any of these unlikely but serious side effects occur arm/leg/back pain, fast heartbeat, hair loss/color change, mental/mood changes e.g. anxiety, depression, hallucinations, ringing in the ears/hearing loss, worsening of skin conditions e.g. psoriasismedication may infrequently cause serious sometimes permanent eye problems or muscle damage, especially if you take it for a long time. HYDROXYCHLOROQUINE - ORAL Plaquenil side effects, medical.. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine Uses, Dosage & Side Effects -. 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. Side Effects. 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 other. The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting.