Tan Ngan Lomedicated tea is a herbal mixture made with 15 natural herbs. The product has over the years created a wide range of herbal products and has come up with the world€™s first ever medicated teabag €œTan Ngan Lo Herbal Tea€�. Tan Ngan Lo herbal tea is made of the finest natural traditional herbs and is very effective used for relief of flu, sore throat, minor diarrhea, quenches thirst.