1. BACKGROUND In 2002, the Philippines changed its antimalarial drug policy to the combination treatment, CQ+ Sulphadoxine-pyrimethamine (SP) as 1st-line treatment and artemether-lumefantrine as 2nd-line treatment. The Department of Health (DOH) prescribed the use of artemether-lumefantrine (AL)
Malaria incidence has increased two- to three-folds over the past four decades, and nearly half the world's population now lives in regions endemic for malaria: In Asia, Africa, and South America. A global annual estimate of 300-500 clinical cases of malaria and mortality in the range of 1-2 million