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. Is hydroxychloroquine safe to take during pregnancy Flomax and plaquenil 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. Chloroquine is a medication used to prevent and to treat malaria in areas where malaria is known to be sensitive to its effects. Certain types of malaria, resistant strains, and complicated cases typically require different or additional medication. Occasionally it is used for amebiasis that is occurring outside the intestines, rheumatoid arthritis, and lupus erythematosus. Oct 01, 2018 The dosage of Chloroquine phosphate is often expressed in terms of equivalent Chloroquine base. Each 500 mg tablet of Chloroquine phosphate contains the equivalent of 300 mg Chloroquine base. In infants and children the dosage is preferably calculated by body 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 dosage forms Chloroquine hydrochloride - GLOWM, Chloroquine - Wikipedia Hydrocloroquine plaquenil 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. Chloroquine Dosage - Malaria Home Page. Chloroquine - FDA prescribing information, side effects and uses. Plaquenil hydroxychloroquine sulfate dosing, indications.. The dosage of Chloroquine phosphate is often expressed in terms of equivalent Chloroquine base. Each 500 mg tablet of Chloroquine phosphate contains the equivalent of 300 mg Chloroquine base. In infants and children the dosage is preferably calculated by body weight. Chloroquine chloroquine Prescription only; 1 dosage forms $74.38 is the lowest price near you; Want to save even more money? Learn about GoodRx Gold In one study, serum concentrations of chloroquine appeared to decline in a biphasic manner and the serum half-life of the terminal phase increased with higher dosage of the drug. In this study, the terminal half-life of chloroquine was 3.1 hr after a single 250 mg oral dose, 42.9 hr after a single 500 mg oral dose.