Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil side effects memory Trialnet hydroxychloroquine Plaquenil report The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting. 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. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Adverse effects of hydroxychloroquine Hydroxychloroquine Uses, Dosage & Side Effects -, Plaquenil Uses, Dosage & Side Effects - Hydroxychloroquine in chikungunyaHydroxychloroquine coatHydroxychloroquine elevated serum porphyrin 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. Long-Term Side Effects of Plaquenil for Rheumatoid.. Plaquenil Oral Uses, Side Effects, Interactions.. Hydroxychloroquine Plaquenil. Sep 13, 2019 Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine Incidence not known Blistering, peeling, loosening of the skin You may report side effects to FDA at 1-800-FDA-1088. What is the most important information I should know about hydroxychloroquine Plaquenil, Plaquenil Sulfate, Quineprox? Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Call your doctor immediately or get emergency medical help if you experience any of the following serious side effects Any vision problems, such as reading difficulties, sensitivity to light, seeing light flashes or streaks, blurred distance vision, or other issues Hearing problems.