Hydroxychloroquine is available as the brand-name drug Plaquenil. Generic drugs usually cost less than the brand-name version. Hydroxychloroquine may be used as part of a combination therapy. Chloroquine lupus erythematosus Hydroxychloroquine sulfate 200 mg tab side effects Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking this medicine and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. Jun 30, 2015 The recommended initial dosage of hydroxychloroquine Plaquenil for the treatment of lupus erythematosus is 400 mg once or twice daily. The recommended maintenance dose range of hydroxychloroquine Plaquenil for the treatment of lupus erythematosus is 200 to 400 mg daily. Take hydroxychloroquine exactly as prescribed. Hydroxychloroquine comes in tablet form. It is taken once or twice a day, unless it is used for the prevention of malaria, in which case it is taken once a week beginning 1 to 2 weeks prior to traveling to an area where malaria is common. Take this medication with a meal or a glass of milk to prevent stomach upset. Hydroxychloroquine is used to treat lupus erythematosus and rheumatoid arthritis. It isn’t fully understood how this drug works to treat lupus erythematosus or rheumatoid arthritis. That means you may need to take it with other drugs. It treats malaria by killing the parasites that cause the disease. Taking too much hydroxychloroquine Plaquenil - Side Effects, Uses, Dosage, Overdose., Plaquenil - Side Effects, Uses, Dosage, Overdose, Pregnancy. Is plaquenil a sulfonamideBulleye chloroquin retinopathyPlaquenil for plaquePlaquenil insomniaHair loss caused by plaquenil 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. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine - Side Effects, Uses, Dosage, Overdose.. Hydroxychloroquine Dosage Guide with Precautions -. Take hydroxychloroquine with a meal or a glass of milk. To prevent malaria Start taking the medicine 2 weeks before entering an area where malaria is common. Continue taking the medicine. 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 belongs to a group of medicines known as antimalarials. It works by preventing or treating malaria, a red blood cell infection transmitted by the. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. This means many people taking Plaquenil for RA are taking a dose of 400mg a day or higher.