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. How long is plaquenil in your system Plaquenil price Chloroquine phosphate abd goby Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. Mood Changes; Muscle Tremors; Muscle Weakness; Nightmares; Nystagmus, A Condition With Involuntary Eye Movements; Ringing In The Ears; Sensation Of Spinning Or Whirling; Weight Loss Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes. 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. Plaquenil and mood Plaquenil and mood swings? DailyStrength, Common and Rare Side Effects for Plaquenil Oral What is plaquenil taken forHydroxychloroquine would it help to drink a lot of waterHydroxychloroquine enhance or inhibit immunePlaquenil sarcoidosis treatmentCan you take hydroxycut elite with hydroxychloroquine 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. Plaquenil Side Effects Common, Severe, Long Term -. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Plaquenil causing mood changes and depression?. Other potential side effects include but are not limited to nausea, changes in mood, muscle weakness, skin pigmentation and anemia. While the drug may be used during pregnancy, the potential benefits and risks should be discussed with your doctor. In summary, if you have Sjögren’s, hydroxychloroquine may be an option to help your symptoms. Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more.