Shwas Kuthar Ras Reference: Ayurveda Sara Sangraha, edition 17th, page no- 377-378. Introduction Shwas Kuthar Ras is an Ayurvedic medicine in tablet or powder form. It is used in the treatment of asthma, dyspnea, chronic bronchitis etc. Ingredients 10 g fine powder of each of:- Shuddha Parada – Purified Mercury Shuddha Gandhaka – Purified Sulphur Shuddha Vatsanabha – Purified Aconitum ferox Tankana Bhasma – Borax Manashila – Purified and processed Realgar (Arsenic di sulphide) Shunti – Zingiber officinalis Pippali –