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. Plaquenil painful muscle spasms Plaquenil lyme disease Novo chloroquine 250 mg Hydroxychloroquine received an overall rating of 7 out of 10 stars from 368 reviews. See what others have said about Hydroxychloroquine, including the effectiveness, ease of use and side effects. Apr 10, 2019 Common Plaquenil 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. Tell your doctor right away if you have any serious side effects, including arm/leg/back pain, slow/fast/irregular heartbeat, symptoms of heart failure such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain, hair loss/color change, mental/mood changes e.g. anxiety, depression, rare thoughts of suicide, hallucinations, ringing in the ears/hearing loss, worsening of skin conditions e.g. psoriasis, severe stomach/abdominal pain, severe nausea. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Side effects of hydroxychloroquine medication Plaquenil Hydroxychloroquine - Side Effects, Dosage., Plaquenil Uses, Dosage & Side Effects - Plaquenil and muscle weaknessHydroxychloroquine guidelines ukHow often to take aralen Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs. If you have had any eye changes or changes in eyesight due to hydroxychloroquine or drugs like this one. If you have psoriasis. Hydroxychloroquine Indications, Side Effects, Warnings -. HYDROXYCHLOROQUINE SULFATE Side Effects, Interactions & More.. Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine.. Jan 01, 2017 Call your doctor right away if you notice any of these side effects Wheezing or trouble breathing. Severe or bloody diarrhea. Blurred vision or eye problems. Skin rash or itching. Unexplained fever, unusual bleeding or bruising. If you notice these less serious side effects, talk with your doctor Headache. Nausea or upset stomach. Diarrhea. Appetite loss Aug 14, 2017 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. The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting.