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. Does marijuanna interact w plaquenil Plaquenil and tonsil swelling Are people on plaquenil immunocompromised Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. Hydroxychloroquine - Get up-to-date information on Hydroxychloroquine side effects, uses, dosage, overdose, pregnancy, alcohol and more. Learn more about Hydroxychloroquine Get medical help right away if you have any very serious side effects, including sensitivity to light, vision changes e.g. blurred vision, seeing light flashes/streaks/halos, missing/blacked-out areas of vision, muscle weakness, numbness/tingling/pain of the arms/legs. 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 The Risk of Retinal Toxicity with Plaquenil, Hydroxychloroquine - Side Effects, Uses, Dosage, Overdose. Flu shot and hydroxychloroquinePlaquenil retinopathyDrug interaction of allopurinol and plaquenilWill plaquenil cause my hot flashes to get worseSide effects hydroxychloroquine plaquenil The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Plaquenil Overdose - Antibiotics Home Page. Our Plaquenil hydroxychloroquine Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. 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 is a well tolerated medication for various rheumatologic and dermatologic conditions. Its main side effects are gastrointestinal upset, skin rash, headache, and ocular toxicity. Within the eye, hydroxychloroquine negatively impacts the cornea, ciliary body, and retina.