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 phosphate for uronema marinum treatment Chloroquine phosphate amazon Chloroquine use in sle How long for plaquenil to start working The usual starting dose of Plaquenil is 200 mg twice a day or 400 mg once a day, administered orally, in people weighing 80 kg or more. The usual dosage works for most people who take Plaquenil, but it is possible to increase or decrease the dose based on individual needs. 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. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. 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. Plaquenil 400 mg bid Plaquenil -, Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses Chloroquine phosphate and leather coralsHydroxychloroquine lupus pregnancyUsual dose of plaquenilChloroquine side effects sleepPlaquenil mg Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in. Plaquenil Oral Interactions with Other Medication. Plaquenil Oral Uses, Side Effects, Interactions, Pictures.. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Do not exceed 600 mg/day 465 mg base/day or 6.5 mg/kg/day 5 mg base/kg/day, whichever is lower. Side effects may require a temporary initial dose reduction. After a clinical response is obtained, reduce the dose by 50%; continue 200 mg 155 mg base to 400 mg 310 mg base PO daily, administered as a single daily dose or in 2 divided doses. I've been on Plaquenil for the past year having a dosage of 200 mg bid. My ophthalmologist tells me that he would prefer to have me take a lower dosage. He asked me if I thought I'd be OK with a small amount, but I told him that the reason we went to 200 mg bid instead of qd was because I was getting little relief on that quantity. 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. Malaria. Prophylaxis Adults 400 mg 310 mg base once weekly on the same day of each week starting 2 weeks prior to exposure, and continued for 4 weeks after leaving the endemic area.