Pratap Lankeshwar Ras Reference: Yoga Ratnakara Stri Roga Chikitsa. Introduction Pratap Lankeshwar Ras is an herbal formulation in the form of tablets or powder. It is used to treat chronic fever, diarrhea. This medicine should be taken under strict medical supervision as it contains heavy metal ingredients in a purified form. It balances Vata and Pitta doshas. Ingredients Purified mercury Purified mica Purified sulphur Black pepper (Piper nigrum) Iron bhasma Conch shell bhasma Cow dung cake bhasma Aconitum ferox Method