The present invention relates to a soft capsular medicament preparation comprising Artemether 3 to 10 % w/w, Lumefantrine 30 to 60 % w/w, non-aqueous vehicle 17 to 30 % w/w, preservative less than 1 % w/w, viscosity imparting agent 15 to 30 % w/w, suspending agent 1 to 7 % w/w and emulsifying agent 0.7 to 4 % w/w and the method of manufacturing the same and a process to manufacture the same.