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. Chloroquine ciprofloxacin Chloroquine nurses responsibility Buy chloroquine plus proguanil Find patient medical information for Hydroxychloroquine Sulfate Bulk on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. 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. Drug Information on Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine includes side effects, uses, drug interactions, dosage, drug pictures, overdose symptoms, and what to avoid. 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 sulfate side effects Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses, Plaquenil Side Effects Common, Severe, Long Term - How does plaquenil treat sjogren& 39Calcium autophagy chloroquinePlaquenil macular If you experience drowsiness, dizziness, hypotension or a headache as side-effects when using Hydroxychloroquine Sulfate Tablet medicine then it may not be safe to drive a vehicle or operate heavy machinery. Hydroxychloroquine Sulfate Tablet - Uses, Side-effects.. Plaquenil, Plaquenil Sulfate, Quineprox.. Hydroxychloroquine Indications, Side Effects, Warnings.. Find patient medical information for Hydroxychloroquine Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. What are some other side effects of Hydroxychloroquine? All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away Dizziness. Headache. Feeling nervous and excitable.