Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Plaquenil and lymphoma Pill image hydroxychloroquine 200mg tablets Plaquenil lymph nodes Chloroquine and primaquine dose 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. Plaquenil or hydroxychloroquine is under the quinolone family. These medications are initially used in the prophylaxis and treatment of malaria. Plaquenil has replaced chloroquine because it produces less retinal side effects. Overdose symptoms include convulsions, drowsiness, headache, heart problems or heart failure, difficulty breathing and vision problems. Pharmacology Pharmacokinetics. Hydroxychloroquine has similar pharmacokinetics to chloroquine, with rapid gastrointestinal absorption and elimination by the kidneys. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Hydroxychloroquine overdose side effects Hydroxychloroquine Side Effects Common, Severe, Long Term., Plaquenil Toxicity - Symptoms, Treatment, Risk Factors. Chloroquine cardiomyopathy beyond ocular adverse effectsPlaquenil and veinsManufacturer of plaquenil Common hydroxychloroquine 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 Uses, Dosage & Side Effects -. Hydroxychloroquine - Wikipedia. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Hydroxychloroquine is a disease-modifying anti-rheumatic drug DMARD used for rheumatoid arthritis and lupus. Learn how long it takes, risks and side-effects. RARE side effects. If experienced, these tend to have a Severe expression. Abnormal Liver Function Tests. Acute Liver Failure. Acute Pustular Eruptions On Skin. Bronchospasm. Decreased Blood Platelets. Decreased White Blood Cells. But this medicine does not work for all strains of the disease. Hydroxychloroquine is also used for the treatment of rheumatoid arthritis. Symptoms of hydroxychloroquine overdose. Hydroxychloroquine overdose needs to be treated quickly. It is must to get an emergency medical help if there arise certain symptoms.