Medical Definition of artemether
: an antimalarial drug C16H26O5 that is a semisynthetic, water-insoluble, derivative of artemisinin administered in an oily solution by intramuscular injection or taken orally in tablets usually in combination with lumefantrine Over the past few decades, combinations of artemisinin derivatives such as artesunate and artemether have proved highly effective against malaria.—Amitabh Avasthi, New Scientist, 21 Aug. 2004 ◆Artemether is marketed under the trademark Coartem when combined with lumefantrine. —compare artesunate
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