Chloroquine has been extensively used in mass drug administrations, which may have contributed to the emergence and spread of resistance. It is recommended to check if chloroquine is still effective in the region prior to using it. What blood test are needed while on plaquenil Hydroxychloroquine and sulfa allergy Chloroquine chemical name Chloroquine, an old malaria drug, may help treat novel coronavirus, doctors say Chloroquine, or hydroxychloroquine, has been used to treat malaria since 1944. The dosage in children is also based on weight. To prevent malaria, take chloroquine once weekly on the same day each week, or as directed by your doctor. Start this medication usually 1 to 2. Children are especially sensitive to an overdose, so keep the medication out of the reach of children. Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check your response to chloroquine phosphate. The Centers for Disease Control and Prevention recommend against treatment of malaria with chloroquine alone due to more effective combinations. In areas where resistance is present, other antimalarials, such as mefloquine or atovaquone, may be used instead. Chloroquine for infants Chloroquine Oral Uses, Side Effects, Interactions, Pictures., Chloroquine Oral Uses, Side Effects, Interactions. Stopping hydroxychloroquine Chloroquine has not been shown to have any harmful effects on the fetus when used for malarial prophylaxis. Small amounts of chloroquine are excreted in the breast milk of lactating women. However, because this drug can be safely prescribed to infants, the effects are not harmful. Chloroquine - Wikipedia. Chloroquine MedlinePlus Drug Information. Medicines for the Prevention of Malaria While Traveling.. Chloroquine works best when you take it on a regular schedule. For example, if you are taking it once a week to prevent malaria, it is best to take it on the same day of each week. Make sure that you do not miss any doses. If you have any questions about this, check with your doctor. Very small amounts of chloroquine are excreted in breast milk; when given once weekly, the amount of drug is not sufficient to harm the infant nor is the quantity sufficient to protect the child from malaria. United Kingdom malaria treatment guidelines recommend that weekly chloroquine 500 mg be given until breastfeeding is completed and primaquine can be given.1 Breastfeeding infants should. 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.