Grayanotoxins is a natural compound found in the honey of nectar derived from certain flowering plants (Rhododendron flowers) found in Asia. This honey is called the ‘Mad Honey’ produced by the worlds' largest bees found in Nepal where these plants grow in abundance. The effects of this hallucinogenic honey are similar to Absinthe when taken in small dosage. A famous story states that the army of the Persian King, Mithridates, defeated its Roman foes by littering the road with mad honey honeycombs which the invading troops ate and were easily defeated due to hallucinations they experienced! On the other hand, according to an ancient medical practice, people consume one teaspoon of this honey at least once a year to develop the immune system.