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. Chloroquine sulphate Plaquenil weight loss or gain Hydroxychloroquine is an antimalarial drug. It treats malaria by killing the parasites that cause the disease. It isn’t fully understood how this drug works to treat lupus erythematosus or. In summary, if you have Sjögren’s, hydroxychloroquine may be an option to help your symptoms. Because there are other more effective therapies available to treat dry eyes and dry mouth, it is typically prescribed to help musculoskeletal pain and fatigue. Be patient, as the drug may take up to 6 months to see a beneficial effect. Chloroquine and hydroxychloroquine Chemical formula of hydroxychloroquine sulfate commonly known by its old brand-name Plaquenil were first used to treat malaria, but the malaria-causing organism soon became resistant to them. 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. Why is hydroxychloroquine prescribed Hydroxychloroquine Reviews Everyday Health, Ask the Expert Plaquenil and Sjögren’s Methotrexate plaquenil sulfasalazine I'm on Plaquenil for leukocytoclastic vasculitis among other autoimmune problems. Is this why Plaquenil is thought to be effective in treating this? I keep hearing about the vascular problems with the virus and autoimmune drug intervention, but I'm confused about the intent behind the medicine. Hydroxychloroquine Plaquenil thread COVID19. Plaquenil Use in Autoimmune Diseases. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended. Hydroxychloroquine is sometimes given only once per week. Choose the same day each week to take this medicine if you are on a weekly dosing schedule. Take hydroxychloroquine with a meal or a glass of milk. Hydroxychloroquine is the most commonly used AM, specifically because it has a lower risk for retinal toxicity than chloroquine. This may be because CQ crosses the blood-retinal barrier and HCQ does not. Hydroxychloroquine sulfate tablets are indicated for the treatment of uncomplicated malaria due to P. falciparum, P. malariae, P. ovale, and P. vivax. Hydroxychloroquine sulfate tablets are indicated for the prophylaxis of malaria in geographic areas where chloroquine resistance is not reported.