This medicine is also sometimes given off-label to help the following conditions: Also, let your doctor know if you drink large amounts of alcohol before starting on this medicine. Your doctor will probably want to order frequent tests to check your body's response to chloroquine. Plaquenil and sjogrens syndrome Plaquenil zon Hydroxychloroquine synthesis Retinal toxicity from plaquenil Aralen Dosage and Administration. 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. ARALEN is an antimalarial and amebicidal drug. Chemically, it is 7-chloro-4-4- diethylamino-1-methylbutylamino quinoline phosphate 12 and has the following structural formula Each tablet contains 500 mg of chloroquine phosphate USP, equivalent to 300 mg chloroquine base. The dose for treating children is 10 mg/kg for the first dose then 5 mg/kg daily for 2 days, starting 6 hours after the first dose. The dose for treating intestinal amebiasis is 1 g daily for two days, followed by 500 mg daily for at least two to three weeks. Chloroquine usually is combined with an effective intestinal amebicide. Let your healthcare provider know if your symptoms either don't improve or worsen while taking this medicine. Keep all appointments with your doctor and laboratory. Chloroquine aralen dosage Drug spotlight on hydroxychloroquine Lupus Foundation of., CHLOROQUINE PHOSPHATE, USP Discoid lupus treatment plaquenil Drug Name Active Ingredients Strength Dosage Form/Route Marketing Status TE Code RLD RS; ARALEN CHLOROQUINE PHOSPHATE EQ 300MG BASE TABLET;ORAL Discontinued None Yes No ARALEN HYDROCHLORIDE CHLOROQUINE HYDROCHLORIDE EQ 40MG BASE/ML INJECTABLE;INJECTION Discontinued None No No [email protected] FDA-Approved Drugs - Food and Drug Administration. Aralen chloroquine Malaria Drug Side Effects & Dosage. Aralen Oral Uses, Side Effects, Interactions, Pictures.. 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 suppress malaria the adult dose of Aralen is 500 mg = 300 mg base taken on exactly the same day of each week. Pediatric dose is based on the child's weight. Aralen may interact with cimetidine, kaolin, or magnesium trisilicate. Tell your doctor all medications and supplements you use. The dose of chloroquine is often expressed or calculated as the base each 500 mg tablet of chloroquine phosphate is equivalent to 300 mg chloroquine base. -The pediatric dose should never exceed the adult dose.