Malaria parasites can enter the body through these mosquito bites, and then live in body tissues such as red blood cells or the liver. This medication is used to kill the malaria parasites living inside red blood cells. Plaquenil pill dosage Chloroquine proguanil malaria prophylaxis The dosage of chloroquine phosphate is often expressed in terms of equivalent chloroquine base. Each 250 mg tablet of chloroquine phosphate is equivalent to 150 mg base and each 500 mg tablet of chloroquine phosphate is equivalent to 300 mg base. In infants and children the dosage is preferably calculated by body weight. Chloroquine Phosphate is indicated in the treatment of malaria, prophylaxis and suppression of malaria, amoebic hepatitis and abscess, discoid and systemic and systemic lupus erythematosus, rheumatoid arthritis Usual Adult Dose for Malaria Prophylaxis. 500 mg chloroquine phosphate 300 mg base orally on the same day each week Comments-If possible, suppressive therapy should start 2 weeks prior to exposure; if unable to start 2 weeks before exposure, an initial loading dose of 1 g chloroquine phosphate 600 mg base may be taken orally in 2 divided doses, 6 hours apart. Both drugs may be needed for a complete cure and to prevent the return of infection (relapse). In some cases, you may need to take a different medication (such as primaquine) to kill the malaria parasites living in other body tissues. Chloroquine phosphate dosage in child Chloroquine MedlinePlus Drug Information, Chloroquine Phosphate Indications, Pharmacology, Dosage. Plaquenil pregnancy complicationsHow does plaquenil help autoimmune diseasesWhat does chloroquine do to dnaChloroquine toxicity screeningReducing inflammation without plaquenil 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. Aralen Chloroquine Uses, Dosage, Side Effects, Interactions, Warning. Chloroquine Dosage Guide with Precautions -. Chloroquine Phosphate Bulk Uses, Side Effects.. Drug interactions. What are the potential side. effects of chloroquine? Chloroquine is a relatively well-tolerated. medicine. The most common adverse reactions reported are stomach pain, nausea, vomiting, and headache. These side effects can often be lessened by taking chloroquine with food. Chloroquine may also cause itching in some people. 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. This is would be a major concern in reef aquaria, but as. 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.