Dhanvantri Mahamantram

"Om Namo Bhagavate 
Maha Sudharshana 
Vasudevaya Dhanvantaraye; 
Amrutha Kalasa Hasthaaya 
Sarva Bhaya Vinasaya 
Sarva Roka Nivaranaya 
Thri Lokya Pathaye 
Thri Lokya Nithaye 
Sri Maha Vishnu Swarupa 
Sri Dhanvantri Swarupa 
Sri Sri Sri 
Aoushata Chakra Narayana Swaha"

Chanting this sloka on a regular basis relieves one from the grip of any kind of disease.