The combination of artemether and lumefantrine is used to treat certain kinds of malaria infections (a serious infection that is spread by mosquitoes in certain parts of the world and can cause death). Artemether and lumefantrine should not be used to prevent malaria. Artemether and lumefantrine is in a class of medications called antimalarials. It works by killing the organisms that cause malaria.
The combination of artemether and lumefantrine comes as a tablet to take by mouth. It is usually taken twice a day for 3 days as instructed by your doctor. Always take artemether and lumefantrine with food. If you are not able to eat, contact your doctor. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take artemether and lumefantrine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.