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 dosing retina recommendation Hydroxychloroquine sulfate melasma Plaquenil for gout Effects of stopping plaquenil If diarrhea came back I had to back off and wait a week to add it again. After 2 months I could take the full dose BUT I can't take it as one tablet in a.m. and one in p.m. I have to break it up and take it 4 times a day to get in the normal 2 200mg tablets per day. The dizziness got better although I still have it a little from time to time. Dosage for Plaquenil. The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. Oct 18, 2005 I was on Plaquenil for 6 years with almost no side effects. However, after going off for about 2 years while they investigated the cause of eye problemsnot Plaquenil I had a lot of side effects when I re-started, including eye problems and had to stop the drug. So it can cause different things at different times to different people. 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 cause dizziness after 2 years Plaquenil and dizziness? Updated, Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses Treating lupus with plaquenilStopping plaquenil for raPlaquenil cardiomyopathy mri Fever that happens while in or after coming back from the malaria area. What are some other side effects of Plaquenil? All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Plaquenil Indications, Side Effects, Warnings -. Healthboards - Bone Joint Muscle - Arthritis Plaquenil side.. Plaquenil hydroxychloroquine sulfate Drug / Medicine.. Nov 16, 2012 2 Doctor is pushing Plaquenil of course and downplaying any side effects no surprise. I do have risk factors for macular degeneration, etc. The two things I am most concerned about are cognitive/memory issues and increased potential for clotting. I have taken plaquenil for lupus off and on for two years one day I started having panic attacks I stopped caffeine alcohol etc. The only thing that helped was stopping the plaquenil after feeling better and some time I thought I’d try it again after a flare. 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.