Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take hydroxychloroquine with all of your drugs and health problems. Dry mouth causes plaquenil Plaquenil and tsh Hydroxychloroquine typically is very well tolerated. Serious side effects are rare. The most common side effects are nausea and diarrhea, which often improve with time. Less common side effects include rash, changes in skin pigment such as darkening or dark spots, hair changes, and muscle weakness. Loss of appetite, tiredness, weakness, or headache are uncommon side effects and typically go away over time. Rare complications The greatest concern people have when taking hydroxychloroquine is related to vision. This phase I / II trial studies the side effects and best dose of hydroxychloroquine when given together with palbociclib and letrozole before surgery in treating participants with estrogen receptor positive, HER2 negative breast cancer. Hydroxychloroquine is a substance that decreases immune responses in the body. For all uses of hydroxychloroquine: WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Do not start, stop, or change the dose of any drug without checking with your doctor. Hydroxychloroquine side effects clinial studies Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses, Drug spotlight on hydroxychloroquine Lupus Foundation of. Reticulocytes chloroquine treatment p62Hydroxychloroquine goodrx couponEffects of ultraviolet ray on chloroquineRetinal toxicity of hydroxychloroquineIs hydroxychloroquine the same as plaquenil Jul 19, 2018 In recent years, studies have reported that hydroxychloroquine plays an important role in the prevention and treatment of cardiovascular diseases. Chloroquine could effectively shorten the action potential of atrial myocytes by blocking the inward rectifier potassium ion channel Kir2.1. Effect of Hydroxychloroquine on Atrial Fibrillation.. Hydroxychloroquine, Palbociclib, and Letrozole before Surgery in.. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. 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. The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting. Hydroxychloroquine Side Effects Get emergency medical help if you have signs of an allergic reaction hives; difficulty breathing; swelling of your face, lips, tongue, or throat.