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 vision problems Which is better for ra plaquenil or methotrexate 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. A rule of thumb might be that for any dose of chloroquine, you could expect to see a rise in phosphate levels of around 20 to 30% of the total dose of chloroquine. Therefore, a single dose of chloroquine at 10 mg/l would increase the PO 4 concentration in the water by about 2 to 3 mg/l. The standard chloroquine dose for treating malaria in adults is a one-time loading dose of 1000 mg, followed by 500 mg in six to eight hours. Then 500 mg is taken once a day for two more days. The standard dosage for malaria treatment in children is based on the child's weight. 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 ARALEN Dosage & Rx Info Uses, Side Effects, Aquarium Fish Chloroquine A "New" Drug for Treating Fish. Can hydroxychloroquine cause a false positive for pregnancyAf plaquenil 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. Chloroquine Dosage Guide with Precautions -. Chloroquine Dosage - Malaria Home Page. Aralen Chloroquine -. Antacids and kaolin reduce chloroquine absorption; separate administration by at least 4 hr Irreversible retinal damage observed in some patients; significant risk factors for retinal damage include daily doses of chloroquine phosphate 2.3 mg/kg of actual body weight, durations of use greater than five years. Both adults and children should take one dose of chloroquine per week starting at least 1 week before. traveling to the area where malaria transmission occurs. They should take one dose per week while there, and for 4 consecutive weeks after leaving. The weekly dosage for adults is 300mg base 500mg salt. For treatment of acute attacks of malaria in adults, one dose is usually taken right away, followed by half the dose 6 to 8 hours later and then half the dose once a day for the next 2 days. For prevention and treatment of malaria in infants and children, the amount of chloroquine phosphate is based on.