It may have both an anti-spirochaete activity and an anti-inflammatory activity, similar to the treatment of rheumatoid arthritis. And caution is required if patients have certain heart conditions, diabetes, psoriasis etc. Chloroquine cytotoxic Plaquenil side effects increased appetitie Plaquenil hyperpigmentation histology What is hydroxychloroquine sulfate tablets used to treat Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Side Effects. Drug information provided by IBM Micromedex Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. PLAQUENIL Hydroxychloroquine Sulfate 200 mg Pill with imprint PLAQUENIL is White, Figure eight-shape and has been identified as Hydroxychloroquine Sulfate 200 mg. It is supplied by Sanofi-Synthelabo Inc. The most serious adverse effects affect the eye, with dose-related retinopathy as a concern even after hydroxychloroquine use is discontinued. The most common adverse effects are a mild nausea and occasional stomach cramps with mild diarrhea. Hydroxychloroquine sul 200 Hydroxychloroquine - Side Effects, Dosage, Interactions., Hydroxychloroquine Oral Route Side Effects - Mayo Clinic How long do you have to take hydroxychloroquine side effectsGlioma chloroquine in vivoMalaria prophylaxis chloroquine resistant areas SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. PLAQUENIL Hydroxychloroquine Sulfate 200 mg -. Hydroxychloroquine Prices, Coupons & Patient Assistance.. Description and Brand Names. Drug information provided by IBM Micromedex US Brand Name. Plaquenil; Descriptions. Hydroxychloroquine is used to treat malaria. It is also used to prevent malaria infection in areas or regions where it is known that other medicines eg, chloroquine may not work. HYDROXYCHLOROQUINE hye drox ee KLOR oh kwin is used to treat rheumatoid arthritis and systemic lupus erythematosus. It is also used to treat malaria. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions. Mg of the sulfate salt is equal to 155 mg of the base. Brand names of hydroxychloroquine include Plaquenil, Hydroquin, Axemal in India, Dolquine, Quensyl, Quinoric. Research. Hydroxychloroquine and chloroquine have been recommended by Chinese and South Korean health authorities for the treatment COVID-19.