It does not work against certain types of malaria (chloroquine-resistant). The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Severe side effects of plaquenil Prednisone and hydroxychloroquine interaction Nov 12, 2009 It takes a really long time for the Plaquenil to kick in. It may even take a year. Mine didn't start working until I was on it for 8 months and I take more than you do. I take 200 mg twice a day. I initially started at 800mg a day then dropped it to 400 mg a day. Please don't give up, you will have good days and bad days. The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. Stop taking. Treatment of Uncomplicated Malaria Adults 800 mg 620 mg base followed by 400 mg 310 mg base at 6 hours, 24 hours and 48 hours after the initial dose total 2000 mg hydroxychloroquine sulfate or 1550 mg base. This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications have not worked or cannot be used. Discuss the most recent information with your doctor before traveling to areas where malaria occurs. Taking plaquenil 4 mg Hydroxychloroquine Indications, Side Effects, Warnings., Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses Plaquenil and eye damageChloroquine phosphate brooklynellaExtinction coefficient chloroquine phosphate If you are also taking a certain drug for diarrhea kaolin or taking antacids such as magnesium/aluminum hydroxide, take hydroxychloroquine at least 4 hours before or after these products. Plaquenil Oral Uses, Side Effects, Interactions, Pictures.. Plaquenil Dosage Guide -. Plaquenil Hydroxychloroquine Side effects, Images, Uses.. Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. How to use Plaquenil. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage is also based on weight. Although some evidence indicates that patients may begin seeing improvement after taking hydroxychloroquine for one or two months, notes that patients must take the medicine for at least six months to reap the full benefits. 8 From the community “I take 200 mg of Plaquenil a day. I was told it can take months to.