Centaury is an ancient one herbal remedy dating back to the Greeks and Romans. It is a bitter tonic. Centaury was once considered a panacea, and given for almost any disorder from sick cows to head lice. The herb is still popular today as a bitter digestive tonic for gas, bloating, and heartburn, and is a treatment for rheumatism and gout because of its anti-inflammatory properties. It can be taken as a tea or tincture before or after meals.