It regulates the activity of the immune system, which may be overactive in some conditions. Hydroxychloroquine can modify the underlying disease process, rather than simply treating the symptoms. Chloroquine pronounce Side effects of stopping plaquenil cold turkey Taking hydroxychloroquine and sulfasalazine together side effects Plaquenil and pregnancy risk Nov 28, 2010 Plaquenil reduces inflammation in many Rheumatic disorders, the mode of action is pretty complicated though so I shan't bore you with all the details, but basically it prevents your dendritic cells these are messengers for your immune system, if you will from interacting with your T-Cells a special type of white blood cell which through a convoluted and boring process, causes inflammation. Hydroxychloroquine is commonly used alongside other disease-modifying drugs including methotrexate – especially for rheumatoid arthritis. However, some drugs can interact with hydroxychloroquine. Indigestion remedies for example, antacids including some over-the-counter preparations can stop hydroxychloroquine being absorbed. What next if plaquenil doesn't work? Support Forums Rheumatoid Arthritis New Topic Reply. for me methotreaxte and plaquenil does't work and i' intonate of sulfa so i am started embrel which states you have to have tried 2 of 3 meds and methotrexate is 1 of them. good luck Hydroxychloroquine is often taken in combination with other drugs such as methotrexate. Over the long term hydroxychloroquine can reduce pain, swelling and joint stiffness. It may be as long as 12 weeks before you notice the benefits. How does plaquenil work for arthritis Plaquenil User Reviews for Rheumatoid Arthritis at, Hydroxychloroquine Side-effects, uses, time to work Plaquenil rebateWill i feel worse before i feel better on plaquenil If a stomachache does occur, it is usually temporary. However, if you experience stomach upset while taking generic hydroxychloroquine, ask your doctor about trying name-brand Plaquenil instead. While these medications contain the same active ingredient, the preparation of generic hydroxychloroquine can sometimes cause stomach irritation. Treating Lupus with Anti-Malarial Drugs Johns Hopkins.. What next if plaquenil doesn't work?. Hydroxychloroquine Plaquenil. Plaquenil hydroxychloroquine "Hi, I was taking the generic form of plaquenil for over 10 years for rheumatoid arthritis. It took a few weeks to see it work but what a change for the better. Less painful joints and fatigue. Always have gotten retina checked and have been good. Then I started getting debilitating migraines. I've heard that plaquenil does help w/ fatigue as well as the pain? Is this true. Right now I am not on any Dmards but when I push myself more than like 4 hrs a day out of the house running errands, etc I totally crash w/ fatigue and pain. I take tramadol and NSAIDs but wondering if I need. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more.