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. Plaquenil muscle weakness Hydroxychloroquine for lupus user reviews What can happen if i stop taking plaquenil Aug 14, 2017 According to the Mayo Clinic, the daily dose for RA is based on body weight; the dose is 2.9mg per pound 1. This means many people taking Plaquenil for RA are taking a dose of 400mg a day or higher. Pigment deposits in the retina can cause vision changes, according to Steven Ofner, M. D. of Eugene Oregon Eye Care. 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. According to the Mayo Clinic, the daily dose for RA is based on body weight; the dose is 2.9mg per pound 1. This means many people taking Plaquenil for RA are taking a dose of 400mg a day or higher. Pigment deposits in the retina can cause vision changes, according to Steven Ofner, M. D. of Eugene Oregon Eye Care. 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. What does plaquenil do to the body Lupus Medicines Hydroxychloroquine - Brigham and Women's Hospital, Plaquenil Hydroxychloroquine - Side Effects, Dosage. Taking plaquenil while on iron supplements What is hydroxychloroquine Plaquenil, and how does it work mechanism of action? What brand names are available for hydroxychloroquine Plaquenil? Is hydroxychloroquine Plaquenil available as a generic drug? Do I need a prescription for hydroxychloroquine Plaquenil? What are the side effects of hydroxychloroquine Plaquenil? Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Long-Term Side Effects of Plaquenil for Rheumatoid.. What does Plaquenil do? -. However, it does take many months for it to build to therapeutic levels in your body. My guess is that after only 12 days, you would not have seen any real effect from the plaquenil - it was probably a coincidence, and you just had a nice little spontaneous remission of symptoms for a while. Plaquenil hydroxychloroquine is a medication most known for its original purpose of treating or preventing malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.