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. Chloroquine phosphate 500 mg dosage Plaquenil dose hydroxychloroquine Plaquenil in ana pregnancy Chloroquine slideshare 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. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. I had been taking plaquenil since April for my lupus and sjogrens. It was working really well and just recently my rheumy told that I was in remission. I felt great. Then I had an allergic reaction to the plaquenil - a rash all over my body, neck, arms and legs. I stopped taking it 1 week ago. 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 for hives Plaquenil Oral Uses, Side Effects, Interactions, Pictures., Hydroxychloroquine Side Effects, Dosage, Uses, and More Hydroxychloroquine 200 mg price increasePlaquenil 200mg prospectWhen is it best to take plaquenilChloroquine and digoxin Answering this question should help allergists treat chronic urticaria with a more evidence based approach. To date there has one been one prospective trial evaluating hydroxychloroquine in hives, and although it showed a trend towards efficacy 0.05p0.10, it was not statistically significant. Hydroxychloroquine Efficacy in Chronic Urticaria - Full.. Allergic reaction to plaquenil DailyStrength. Ask the Expert Plaquenil and Sjögren’s. Plaquenil. It was originally made for Lupus, which is also an auto immune disease, but apparently it helps in the treatment of hives. I am so excited to start taking and finally be able to get some relief from all of this! I've been taking the Elavil and Naproxen for 2.5 months and the Plaquenil for four weeks now. I know the NSAID's can make you more sensitive to sunlight, but I don't think this is the reason for the hives. 4 replies Sjogrens Syndrome and Hives. By Barbwire89011 30 posts, last post over a year ago. I starting taking Plaquenil and Zytec daily that has helped prevent exacerbations along with a Prednisone dose pack when I do have an outbreak. My last serious bout was about 8 years ago. I hope this information helps you and that you find an answer very soon.