These formulations are taken from the ancient Vedic text or Vedas (books of Ayurveda), the ancient religious and philosophical texts that are the oldest surviving literature in the world, which makes Ayurvedic medicine the oldest surviving healing system. These medicines are present in traditional Ayurvedic text books such as Charaka Samhita, Sushruta Samhita etc. We follows the same formula and prepares medicines. For e.g bhasmas, asavas, arishtas, taila etc.