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. Hydroxychloroquine and drinking alcohol Diagnosis code for plaquenil therapy What is hydroxychloroquine for Chloroquine phosphate is freely soluble in water. 3, 5, 6 An aqueous solubility of 1 in 4 was reported. 7 It is not clear if this means 1 part dissolved in 4 part solution, i.e. 250 mg/ml, or 1 part dissolvable in 4 parts of water, i.e. 200 mg/ml. Chloroquine enters the red blood cell, inhibiting the parasite cell and digestive vacuole by simple diffusion. Chloroquine then becomes protonated to CQ2+, as the digestive vacuole is known to be acidic pH 4.7; chloroquine then cannot leave by diffusion. Chloroquine phosphate tablets, chloroquine phosphate, USP, is a 4-aminoquinoline compound for oral administration. It is a white, odorless, bitter tasting, crystalline substance, freely soluble inwater. Chloroquine phosphate tablets are an antimalarial and amebicidal drug. 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 phosphate solubility Chloroquine phosphate - DrugBank, Chloroquine - Wikipedia Plaquenil sleeplessnessAcr hydroxychloroquine Chloroquine is a chemotherapeutic agent for the clinical treatment of malaria. Chloroquine is able to bind to DNA, and inhibit DNA replication and RNA synthesis which in turn results in cell death. The effect of Chloroquine may also be related to the formation of a toxic heme-Chloroquine complex. Chloroquine diphosphate ≥99%HPLC Selleck ATM/ATR.. DailyMed - CHLOROQUINE PHOSPHATE tablet. Chloroquine phosphate C18H32ClN3O8P2 - PubChem. Chloroquine phosphate exhibits essentially no optical activity, existing as a racemic mixture. Chloroquine phosphate exists in two polymorphic forms giving rise to two melting ranges. Chloroquine phosphate is freely soluble in water—practically insoluble in alcohol, in chloroform and in ether. The drug should be administered with caution to patients having G-6-PD glucose-6 phosphate dehydrogenase deficiency. In patients with preexisting auditory damage, chloroquine should be administered with caution. In case of any defects in hearing, chloroquine should be immediately discontinued, and the patient closely observed. CHLOROQUINE PHOSPHATE, USP DESCRIPTION ARALEN, chloroquine phosphate, USP, is a 4-aminoquinoline compound for oral administration. It is a white, odorless, bitter tasting, crystalline substance, freely soluble in water. ARALEN is an antimalarial and amebicidal drug.