Agada, which is translated from Sanskrit as the elixir of immortality and antidote to cure diseases, is one of the research areas in traditional Indian medicine known as Agada Shastra. In ancient India, medicine was referred to as Agada Veda. In Buddhism, the Buddha is often referred to as the “great king of medicine,” and Buddhist teachings are likened to Agada, which is believed to be capable of curing the poison of sentient beings. Agada medicine in Buddhism is also called the elixir of immortality, which is believed to have miraculous healing effects on various diseases and can cure all kinds of ailments. In traditional Chinese medicine, Agada medicine is also regarded as a true prescription for treating multiple diseases. Chinese historian Chen Yinke once suggested that the story of Hua Tuo may have originated from India, as the ancient pronunciation of “Hua Tuo” is similar to Agada and may be a nickname for Agada.