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. Can i just stop taking hydroxychloroquine Plaquenil weight gain or loss Plaquenil used for alopecia Sep 13, 2019 yellow eyes or skin; Symptoms of overdose. Drowsiness; dry mouth; increased thirst; loss of appetite; mood changes; no pulse or blood pressure; numbness or tingling in the hands, feet, or lips; unconsciousness; Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Hydroxychloroquine sulfate HCQ, Plaquenil is an analogue of chloroquine CQ, an antimalarial agent, used for the treatment of systemic lupus erythematosus, rheumatoid arthritis and other autoimmune disorders. Its use has been associated with severe retinal toxicity, requiring a discontinuation of therapy. Eye damage due to Plaquenil is not common,” he says. “Rarely will anybody who has good vision and minimal symptoms develop loss of central vision or ability to read if annual screening is done and visual are symptoms reported as soon as they occur so the medication can be stopped if toxicity occurs. 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 eye effects Plaquenil Hydroxychloroquine - Side Effects, Dosage., Retinal toxicity associated with chronic exposure to. Chloroquine autophagy RARE side effects A Change In Vision. Acquired Chromatopsia, A Change In Color Vision. Irritability. Loss Of Muscle Coordination. Low Energy. Mood Changes. Muscle Tremors. Muscle Weakness. Nightmares. Nystagmus, A Condition With Involuntary Eye Movements. Ringing In The Ears. Sensation Of. Common and Rare Side Effects for Plaquenil Oral. Protecting your eyesight when taking Plaquenil Lupus.. Hydroxychloroquine Plaquenil Success, Reviews and Side Effects. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. While today it is used to treat autoimmune conditions, such as rheumatoid arthritis and lupus, it was originally used as an anti-malaria drug. Eye pain is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 10+ years, also take medication Enbrel, and have Pain. 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.