Begin 1-2 days before travel, daily during travel, and for 7 days after leaving. Take this medicine exactly as directed by your doctor. Effects of hydroxychloroquine on taste Does magnesium affect plaquenil Pain when stopping hydroxychloroquine plaquenil For treatment of malaria Adults—At first, 1000 milligrams mg once a day. Then, 500 mg 6 to 8 hours after the first dose, and 500 mg on the second and third days of treatment. Adults with low body weight and children—Dose is based on body weight and must be determined by your doctor. The usual dose for malaria prevention in adults is 500 mg once a week. The Aralen dosage in children is based on the child's weight. Children receive about 8.3 mg per kg of body weight about 3.8 mg per pound of body weight or the adult dose, whichever is less. The dosage of chloroquine phosphate is often expressed in terms of equivalent chloroquine base. Each 500 mg tablet of Aralen contains the equivalent of 300 mg chloroquine base. In infants and children the dosage is preferably calculated by body weight. Malaria. Suppression — Adult Dose 500 mg = 300 mg base on exactly the same day of each week. To do so may increase the chance of serious side effects. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. Aralen malaria doses Aralen chloroquine Malaria Drug Side Effects & Dosage, Aralen Dosage - eMedTV Health Information Brought To Life Plaquenil sunburnt Damage to the retina, the light sensitive portion of the inner eye, can occur with long-term use of Plaquenil or chloroquine Aralen. With Plaquenil, however, the most commonly prescribed anti-malarial, this sort of damage occurs only in 1 out of 5,000 people who take the drug for five years or more. Treating Lupus with Anti-Malarial Drugs Johns Hopkins.. Aralen - FDA prescribing information, side effects and uses. Medicines for the Prevention of Malaria While Traveling.. Education and information regarding choosing a drug to prevent malaria, including a list of all available drugs and reasons for taking or not taking a certain drug. Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link 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. ARALEN prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects.