Immune Booster Peyawa Powder, a product of Ayurvedic Drugs Corporation made with Ingredients: Rasakinda, Kaladuru, Ginger, Kiratha, Coriander, Rath Handun etc. Preparation: Add four cups of water in to the contents of the packet (two table spoon) and boil it until the water is reduced to half a cup of water. Strain the boiled water. Can be taken with or without sugar. Dosage: Twice daily morning and evening.