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 maculopathy cumulative dose Color dx konan in plaquenil toxicity Serious Side Effects of Plaquenil. Some patients will be able to go back to the same dose eventually. After one to three months, people with rheumatoid arthritis usually have a good response. Plaquenil is a prescription medication used to reduce pain and swelling caused by diseases of the immune system such as rheumatoid arthritis, juvenile arthritis, and systemic lupus erythematosus SLE. This medication belongs to a group of drugs called DMARDs disease modifying antirheumatic drugs which work by suppressing the excessive activity of the immune system. I started taking Plaquenil, and I'm supposed to be taking two 200mg pills a day, but I'm only taking one for a week to ease into it. So far I've woken up every morning very nauseous and with a lot of stomach pain and fatigue early in the day plus diarhea. I heard the side effects go away after a. 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 side effects back pain Hydroxychloroquine Plaquenil Side Effects & Dosage for., Plaquenil - Side Effects, Uses, Dosage, Overdose. Plaquenil and log qtMefloquine chloroquine I had neuropathic pain a couple of months back, but my Dr. put me amlodipine for my Ryanauds, and after starting that, that pain has stopped. It was horrible too! I just got my prescription for Plaquenil and I have not started it yet. I am kind of nervous about it with the side effects. I will be interested in hearing what others have to say. Plaquenil side effects - Scleroderma - Inspire. Plaquenil Side Effects Go Away? DailyStrength. Plaquenil Drug and Medication User Reviews on RxList. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Find information about common, infrequent and rare side effects of Plaquenil Oral. Jun 30, 2015 Plaquenil is a prescription medication used to reduce pain and swelling caused by diseases of the immune system such as rheumatoid arthritis, juvenile arthritis, and systemic lupus erythematosus SLE.