Plaquenil (hydroxychloroquine) belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Hydroxychloroquine and sun Plaquenil and anthrax vaccine Plaquenil is most known for its original purpose treating and preventing malaria. Malaria is a disease caused by parasites that can enter the body through a mosquito bite. The essential ingredient, known as quinine, is derived from the bark of the cinchona plant. Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. Hydroxychloroquine 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. This medicine is not effective against all strains of malaria. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil generic goodrx Hydroxychloroquine Side Effects - GoodRx, Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects. Plaquenil and folic acid interactionsPlaquenil for infertilityWhat is chloroquine used for in cell biologyPlaquenil and yeast infections Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Plaquenil Prices, Coupons & Savings Tips - GoodRx. Hydroxychloroquine is a prescription drug. It comes as an oral tablet. Hydroxychloroquine is available as the brand-name drug Plaquenil. It’s also available in a generic version. Generic drug availability, manufacturer information, and patent status on Plaquenil. Generic Plaquenil Availability. Plaquenil is a brand name of hydroxychloroquine. Fraudulent online pharmacies may attempt to sell an illegal generic version of Plaquenil. These medications may be counterfeit and potentially unsafe. One PLAQUENIL tablet contains 200 mg of hydroxychloroquine sulfate, which is equivalent to 155 mg base. Take PLAQUENIL with a meal or a glass of milk.