This preparation contains a fixed ratio of 1:6 parts of Artemether and Lumefantrine respectively. Artemether is a derivative of naturally occurring substance Artemisinin. Lumefantrine is a synthetic racemic fluorine mixture belonging to the aryl amino alcohol family like other anti-malarials (e.g. Quinine, mafloquine, halofantrine). Both components act in the food vacuoles of malarial parasites, where they are thought to interfere with the conversion of haem, a toxic intermediate formed during haemoglobin breakdown, to the non-toxic haemozin (a malaria pigment). Lumefantrine is thought to interfere with the polymerization process, while Artemether generates reactive metabolites as a result of interaction between the peroxide bridge and haem iron. Both Artemether and Lumefantrine have a secondary action involving inhibition of nucleic acid – protein synthesis within the malarial parasites. This tablet did not induce resistance. This tablet is active against blood stages of Plasmodium vivax, but it is not active against hypnozoites. Therefore, sequential treatment with premaquine should be used to achieve hypnozoite eradication.