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 moa lupus Solubility of chloroquine in water Recently, an altered chloroquine-transporter protein CG2 of the parasite has been related to chloroquine resistance, but other mechanisms of resistance also appear to be involved. Research on the mechanism of chloroquine and how the parasite has acquired chloroquine resistance is still ongoing, as other mechanisms of resistance are likely. Frequently used trade names of CQ include Avloclor, Nivaquine or Aralen, and the most frequently used trade name for HCQ is Plaquenil. The mechanisms of action of CQ and HCQ against the malarial Plasmodium parasite and against the auto-immune disorders for which they are approved are well known 2–6. ARALEN® CHLOROQUINE PHOSPHATE, USP. For Malaria and Extraintestinal Amebiasis. 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. 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. Aralen mechanism of action Aralen Chloroquine MyLupusTeam, Repurposing Drugs in Oncology ReDO—chloroquine and. Does plaquenil suppress the immune systemTaking too much hydroxychloroquinePlaquenil or methotrexateReading oct screening results plaquenilHydroxychloroquine treatment for lyme disease Apr 02, 2019 Mechanism of Action. Chloroquine is an antimalarial agent. While the drug can inhibit certain enzymes, its effect is believed to result, at least in part, from its interaction with DNA. However, the mechanism of plasmodicidal action of chloroquine is not completely certain. Activity in vitro and in vivo Aralen Chloroquine Uses, Dosage, Side Effects.. CHLOROQUINE PHOSPHATE, USP. Aralen Diphosphate Drug Information, Uses, Side Effects.. Aralen Tablet. Chloroquine is used to prevent or treat malaria caused by mosquito bites in countries where malaria is common. Malaria parasites can enter the body through these mosquito bites, and then live in body tissues such as red blood cells or the liver. Chloroquine is a 4-aminoquinoline with antimalarial, anti-inflammatory, and potential chemosensitization and radiosensitization activities. Although the mechanism is not well understood, chloroquine is shown to inhibit the parasitic enzyme heme polymerase that converts the toxic heme into non-toxic hemazoin, thereby resulting in the accumulation of toxic heme within the parasite. Mechanism of action Antimalarial Inside red blood cell s, the malarial parasite, which is then in its asexual lifecycle stage, must degrade hemoglobin to acquire essential amino acids, which the parasite requires to construct its own protein and for energy metabolism.