The term lupus fog means more than memory problems. It also refers to cognitive difficulties, such as trouble helping your child with homework, or writing a grocery list. Hydroxychloroquine vision Plaquenil and tsh Why take chloroquine phosphate 500 mg I just started on the plaquenil last week, and I know the brain fog was pants before but now I'm starting to scare myself; I keep starting projects and then realising I've forgotten steps or misplaced. I recently went on Plaquenil a few months ago, and I have been noticing how much weight I've been losing. I feel like I am losing too much weight. I am a thin person, and I am sick very often. Last week, I lost three pounds, and the week before I lost two pounds. Everyone keeps commenting that I'm. Plaquenil caused a loss of appitite and weight loss for me. Both times I started taking it, the first time it was so serious I had to stop taking it. Started again several years later when I flared again and had loss of appitite and weight loss but a bit more moderate. She's now collaborating on a web site and vocational program designed to help others with the condition. "It can really make your whole world fall apart," says Janet Foley Orosz, Ph D, a public policy expert in Ohio who has struggled with lupus fog for almost 20 years. Plaquenil memory loss Early Plaquenil Toxicity Detected without Bull’s Eye Maculopathy, Plaquenil and weight loss DailyStrength Hydroxychloroquine public assessment reportPlaquenil for early raChloroquine toxicity ecgPlaquenil patient assistance forms Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria 2. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. According to the Mayo Clinic, it can take up to six months' constant use before an effect is seen in RA 1. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis.. Plaquenil & Weight Gain/Loss -. Sjogren’s Syndrome How Common Are Memory Problems? Scary Symptoms. A rare side effect of Plaquenil involves visual changes or possible loss of vision—the side effect that is most worrisome for patients. The aforementioned rare side effect that affects vision hydroxychloroquine retinopathy, if caught early, may improve after discontinuation of Plaquenil. Hence, if the loss of appetite and weight loss started after you started on this drug, then yes, it could be due to Plaquenil. However, if you had loss of appetite and weight loss before your started this drug, then the drug can aggravate the process. In this case, the cause of loss f appetite and weight loss has to be found. I've been taking Plaquenil for about 8 months. It does help with fatigue, but I don't think it helps with brain fog or other neuro symptoms. Plaquenil helps with joint pain but not muscle aches and pains. Actually one of the rare side effects is myopathy, which is muscle weakness.