Brand names: Chloroquine Phosphate
Mechanism of Action: Chloroquine, a 4-aminoquinoline, is an anti-protozoal agent. The precise mechanism by which chloroquine exhibits activity is not known. Chloroquine, may exert its effect against Plasmodium species by concentrating in the acid vesicles of the parasite and by inhibiting polymerization of heme. It can also inhibit certain enzymes by its interaction with DNA. Activity in Vitro and in Clinical Infections: Chloroquine is active against the erythrocytic forms of susceptible strains of Plasmodium falciparum, Plasmodium malariae, Plasmodium ovale , and Plasmodium vivax . Chloroquine is not active against the gametocytes and the exoerythrocytic forms including the hypnozoite stage ( P. vivax and P. ovale ) of the Plasmodium parasites. In vitro studies with Chloroquine demonstrated that it is active against the trophozoites of Entamoeba histolytica. Drug Resistance: Resistance of Plasmodium parasites to chloroquine is widespread (see INDICATIONS AND USAGE , Limitations of Use
9 documented side effects by frequency
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Dosage Forms
Tablet
Route
Oral