Plaquenil 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, and Southern Asia. Does plaquenil cause itchy skin Plaquenil report If you're taking Plaquenil for an autoimmune condition, your symptoms should begin to improve after a few months, but it can take up to six months for full effects. Stop taking the medicine. Have been on methotrexate 20mg firstname.lastname@example.org for about a year and 1/2. Recently moved and have a new Rheumatoligist who did his own blood test and x-rays, according to him he cannot find the blood factor or damage to any joints to prove that I have RA. I would like to know can I stop taking methotrexate or do I have to ween off of it slowly? Or should I even be thinking of stopping the meds? I. Guys, Are there side effects to stopping Plaquenil? If so, what? How soon after do you feel the effects of Sarcoidosis? Michele. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. What happens if you quit taking plaquenil What happens if I stop taking plaquenil hydroxychloroquine., Stopping Methotrexate - Arthritis Information How to treat plaquenil rashChloroquine raises ph Saturday was a week since I stopped taking Plaquenil, aka Hydroxychloroquine, per my doctor's instructions, and I think I am going through some form of withdrawal. I took the drug as a treatment for sarcoidosis and one of the side effects is a reduction in white blood cells, which is what has happened to me. Plaquenil Withdrawal – Life As An Anomaly. Side effects to Stopping Plaquenil. - Sarcoidosis - Inspire. Plaquenil Hydroxychloroquine Side effects, Images, Uses.. We study 48,911 people who have side effects while taking Plaquenil from Food and Drug Administration FDA. Among them, 3 have Alcohol interaction. Find out below who they are, when they have Alcohol interaction and more. You are not alone. eHealthMe can help you improve drug uses, prevent side effects, and save money when you take medications. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking Plaquenil and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. What will happen if you stop taking plaquenil? Wiki User November 17, 2011 PM. I was wondering what would happen when you stop taking plaquenil after trying it out for 3- 6 months.