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. Chances of having a lupus flare when stopping plaquenil Chloroquine phosphate chemical structure Chloroquine how effective against malaria Hydroxychloroquine sulphate tablets side effects These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about. A rash is an even more rare side effect, but it sometimes occurs in people taking guaifenesin 5. The skin irritation can sometimes include hives. Other Side Effects. There have been a few, extremely rare cases of guaifenesin producing other side effects, but these are often in cases where a combination drug was used and, in some cases, abused 5. Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. 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. Plaquenil sde effect jittery Plaquenil Oral Uses, Side Effects, Interactions, Pictures., Bad Side Effects of Mucinex Healthfully Plaquenil 200mg tablets 100Cost of antimalarial drugs chloroquineCan plaquenil help with hairlossDoes plaquenil have generic Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Side Effects Common, Severe, Long Term -. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis.. Diarrhea is a common side effect of amoxicillin. All antibiotics kill off the normal bacteria in our guts which disrupts the gut and can lead to diarrhea. Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Malaria. PLAQUENIL is indicated for the treatment of uncomplicated malaria due to P. falciparum, P. malariae, P. ovale, and P. vivax. PLAQUENIL is indicated for the prophylaxis of malaria in geographic areas where chloroquine resistance is not reported.