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. I take 2 hydroxychloroquine Is hydroxychloroquine a time release pill Herpes and plaquenil How good is Hydroxychloroquine, and any side effe. - LUPUS UK. LUPUS UK. 25,607 members • 21,035. Extensive muscle wasting which eventually resulted in a weight loss of about 40% and three near death experiences in approx. 6 years. Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare. Ideal body weight Plaquenil dosing calculations are reprinted with permission from The Lupus Encyclopedia A Comprehensive Guide for Patients and Families, by Donald E. Thomas, published by Johns Hopkins University Press. View detailed reports from patients taking hydroxychloroquine sulfate who experienced abnormal weight gain. Reports are from official medical reports as well as online extractions from user reviews and forum discussions. 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 sulfate and weight gain Hydroxychloroquine Side-effects, uses, time to work, Protecting your eyesight when taking Plaquenil Lupus. Hydroxychloroquine can suppress appetite Side Effects. Drug information provided by IBM Micromedex Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. Hydroxychloroquine Sulfate Abnormal Weight Gain Reports.. Hydroxychloroquine SULFATE -. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Some people claim that calories have nothing to do with weight gain or loss. Here are 7 graphs that. Hydroxychloroquine Sulfate is a synthetic derivative of quinolyl with chemotherapeutic and antibiotic properties, Hydroxychloroquine Sulfate acts against erythrocytic malarial parasites Plasmodium vivax, ovale, and malariae by concentrating in food vacuoles. It inhibits plasmodial heme polymerase and acts through other unknown mechanisms. Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America.