It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Chloroquine hemolytic transfusion Hydroxychloroquine in chikungunya Is plaquenil safe long term Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. PLAQUENIL prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects. Usual Adult Dose for Malaria Prophylaxis. Suppression 400 mg 310 mg base orally on the same day every week Comments-Suppressive therapy should begin 2 weeks prior to exposure; however, failing this, an initial dose of 800 mg 620 mg base may be taken in 2 divided doses 6 hours apart. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Normal dosage of plaquenil Chloroquine Dosage Guide with Precautions -, PLAQUENIL Dosage & Rx Info Uses, Side Effects Chloroquine toxicity treatment Hydroxychloroquine dosage recommendations often ignored. Publish date March 8, 2017. By Mitchel L. Zoler. Evidence continues to mount that some North American rheumatologists are not following practice recommendations for minimizing the retinal toxicity risk of patients on long-term hydroxychloroquine treatment. Hydroxychloroquine dosage recommendations often ignored.. Hydroxychloroquine Dosage Guide with. Plaquenil Risk Calculators. In a small percentage of patients, side effects may require temporary reduction of the initial dosage. Maintenance adult dosage When a good response is obtained, the dosage may be reduced by 50 percent and continued at a maintenance level of 200 mg to 400 mg 155 to 310 mg base daily, administered as a single daily dose or in two divided doses. The recommended dose of hydroxychloroquine Plaquenil in adults is 400 mg on exactly the same day of each week. The recommended weekly suppressive dose of hydroxychloroquine Plaquenil in children 6 years of age and older is 5 mg base/kg. This dose should not exceed the adult dose reg ardless of body weight. The usual dosage works for most people who take Plaquenil, but it is possible to increase or decrease the dose based on individual needs. It's important to watch for possible side effects and toxicity. For people who weigh less than 80 kg, a lower daily dose is prescribed, up to a maximum of 5 mg/kg of body weight.