Amodiaquine, also known by its CAS number 86-42-0, is a pharmaceutical substance used for the treatment of malaria. It belongs to the class of antimalarial drugs and is commonly used in combination with other medications to increase its effectiveness. Amodiaquine works by interfering with the growth and replication of the malaria parasite, thus helping to eliminate the infection from the body. It is available in various forms such as tablets, capsules, and syrups for oral administration. Amodiaquine is a crucial component in the global efforts to combat malaria, particularly in regions where the disease is prevalent.