ആയുർവേദ ഔഷധതരമാണ് കഷായം. വിവിധ ഔഷധങ്ങൾ കഷായ നിർമ്മാണത്തിനായി ഉപയോഗിക്കുന്നു.

Kashayam is an Ayurveda term and does not denote any one particular Ayurvedic medicine, but a generic term for various types of medicinal concoction in Ayurveda. Kashayam refers to a water decoction or water extract of a single herb or group of herbs and can be used for ailments like indigestion, cough and common cold etc. It is an ancient form of medicine that has been used for a long time. Many are very bitter in taste and the liquid is dark in color. It is mainly used by Kerala, Karnataka, Tamil Nadu, Andhra Pradesh, Telangana and West Bengal states. It is also called Kwath or Kadha in other cultures in India.