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. Chloroquine induces degradation Plaquenil aptt test Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. 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 The plaquenil has caused a weight gain of about 20-25 pounds for me. Since I was diagnosed with MCTD a year ago, Plaquenil has been the only medication besides eye supplements, thyroid meds - been stable for years, and most recently Evoxac that I have been given. 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. 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 Sulfate Abnormal Weight Gain Reports., Plaquenil & Weight Gain/Loss - Hydroxychloroquine wr walter reedChloroquine lung cancerPlaquenil and beerPlaquenil antibiotic interactionsChloroquine phosphate malaria Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them. Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked. © How good is Hydroxychloroquine, and any side. - HealthUnlocked. Hydroxychloroquine sulfate C18H28ClN3O5S - PubChem. Plaquenil Oral Uses, Side Effects, Interactions, Pictures.. 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. Feb 19, 2020 Dosage for Plaquenil. The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. 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.