Cancer Bush, Sutherlandia Frutences Sutherlandia has been used for many years as a medicinal plant of excellence in Southern Africa.   Sutherlandia is successfully used as an adapt genic herb to treat colds, flu, asthma, diabetes, TB, bronchitis, liver problems, haemorrhoids, piles, diarrhoea, heartburn, peptic ulcers, backache, varicose veins and inflammation. It has been known to treat mental and emotional stress, including irritability, anxiety and depression.