As the name suggest, Panchkarma means Pancha Karma i.e. Five Methods or Five Operation in Ayurvedic Medicinal System. These are:
Vaman Karma
It is expulsion of aggravated doshas from the mouth region or the oral canal is called Vaman karma. It should not be compared with vomiting. Vomiting is the forceful expulsion of content of stomach. Where as Vaman karma is performed after sequence of procedures under the supervision of panchkarma expert and is done according to the patients requirements from treating him from the disease.
Definition. - Vaman or administration of emetics is one of the series of panchkarma procedures. This is a Shodhana karma (cleansing procedure) or purifying operation with regards to kapha dosha. The aim and administration of Vaman karma are different from and more comprehensive than those of administration of emetics in modern sciences