Lumether 80 mg Orange Flavour DT Tablet is used to treat and prevent malaria. It contains Artemether and Lumefantrine, which interfere with the Plasmodium parasite's growth in the red blood cells of the human body. It is a combination medicine used to treat non-severe malaria caused by a parasite called Plasmodium falciparum. It may cause common side effects, such as headache, dizziness, loss of appetite, weakness, fever, chills, tiredness, muscle or joint pain, nausea, vomiting, abdominal pain, cough, and trouble sleeping. Before using this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.