Sorry, there has been an issue processing your request. Alternatively, head back to the home page and see how we're leading the fight against the pain of Arthritis. At Healthfully, we strive to deliver objective content that is accurate and up-to-date. Chloroquine sulphate arthritis Chloroquine method of action Summary Tinnitus is found among people who take Hydroxychloroquine sulfate, especially for people who are female, 60+ old, have been taking the drug for 1 month, also take medication Enbrel, and have Insomnia. Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Hydroxychloroquine sulfate prolongs the QT interval. Ventricular arrhythmias and torsade de pointes have been reported in patients taking hydroxychloroquine sulfate see OVERDOSAGE and DRUG INTERACTIONS. Ear and labyrinth disorders. Vertigo, tinnitus, nystagmus, nerve deafness, deafness. Eye disorders The sources cited below consist of evidence from peer-reviewed journals, prominent medical organizations, academic associations, and government data. Our team periodically reviews articles in order to ensure content quality. Hydroxychloroquine and tinnitus Hydroxychloroquine and tinnitus - Sticky Blood-Hugh., Plaquenil Side Effects Common, Severe, Long Term - Side effects of too much plaquenil View detailed reports from patients taking Hydroxychloroquine Sulfate who experienced tinnitus. Reports are from official medical reports as well as online extractions from user reviews and forum discussions. Hydroxychloroquine Sulfate Tinnitus Reports - DrugInformer. Hydroxychloroquine Tablets - FDA prescribing information, side effects.. A case report of hearing loss post use of.. I hardly know anything about tinnitus but I wonder if the fact that it is affecting only one ear makes any difference to the probable cause. Are you taking any aspirin type medicines, salicylates. They can also cause tinnitus. I'd have thought other possible causes would need to be eliminated before blaming the Plaquenil. Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. I have been on Hydroxychloroquine for 2yrs plus now but halved dose few months ago, took Methotrexate for 6 months but stopped due to side effects and now on Benepali for a year. I cannot remember exactly when the tinnitus started but could tie in with the Hydroxychloroquine.