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. Hydroxychloroquine in lupus pregnancy. Plaquenil natural alternative Hydroxychloroquine is a DMARD. The brand name is Plaquenil. What does Plaquenil do? Plaquenil relieves pain and swelling and prevents damage to joints. How long does Plaquenil take to work? Plaquenil works very slowly. In 1 to 3 months you should start to feel better. You may continue to get better for up to 1 year. I recently decided to stop taking Plaquenil because I was having constant chest pains even more so than I usually have due to Lupus. Since I have not taken it my chest feels so much better which is odd because chest pain is not listed as a side effect. Also I noticed that the Plaquenil I think was making me feel different but not in a good way. Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. 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. Stopping plaquenil change to what Hydroxychloroquine Side Effects, Dosage, Uses, and More, Had to stop taking Plaquenil - Plaquenil and pain reliefCan you drink on plaquenilHydroxy chloroquinePlaquenil tinglingAnother medication that can be taken with plaquenil 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. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Hydroxychloroquine Plaquenil. Stopping plaquenil. DailyStrength. Plaquenil is a 6-weeker as far as the benefits are concerned, but it would be more dangerous to stop if you spend a lot of time outside and if this were the summer. If you're gonna experiment, I went off it cold turkey as it didn't hurt to do it that way, but you better get back on before the summer or you could experience a flare-up. 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. Withdrawal syndrome is found among people who take Plaquenil, especially for people who are female, 50-59 old also take medication Lyrica, and have Fibromyalgia. This study is created by eHealthMe based on reports of 48,911 people who have side effects when taking Plaquenil from Food and Drug Administration FDA, and is updated regularly.