Coffee is native to Arabia and Ethiopia and is thought to have been first drunk in Persia. Now grown in Central and Latin America and West Indies, it has been used widely for medical purposes as a diuretic, painkiller, and to ease indigestion. It is also a well-known stimulant. Homeopathically, coffee is made from the raw berries of the coffee tree and was first “proved” by Hahnemann himself and a handful of volunteers. it is mainly used to treat those who are excitable and mentally overstimulated.