Black halibut is widely used in traditional Indian and Iranian medicine to treat diseases including dementia, constipation and diabetes. This tree is known in traditional Iranian medicine (ITM) as halileh or halilaj and this fruit is used to develop therapies. In ITM it is described as astringent, having a “cold” and “dry” temperament. The medicinal properties described for this tree in ITM were compared with those reported in modern phytotherapy studies. The results confirm that the tree referred to in traditional books as Halilah is Terminalia fat, which is used in modern studies. Treatments that have not been evaluated in modern phytotherapy but have traditionally been treated with terminal fungus include fever and mental health problems.