In Ayurveda, the diseased person is not supposed to be a passive victim of some disease causing agents i.e. bacteria, virus, fungus, accidents etc but the person is responsible for one’s health status.

In Ayurveda the drugs are not from synthetic source or having single molecule which affect a particular system in a positive way and other in negative way ; and secondly disease are not produced in laboratories but from our surroundings and life style and hence mechanism of manifestation of any disease is a complex phenomenon ; so in Ayurveda disease mechanisms are explained on the basis of natural elements which are part and partial of normal physiological functions are also involved in pathogenesis and the mechanism of drug action is described on the basis of affects on these factors, and this natural complex phenomenon are understood on the basis of same fundamentals and hence the drug are more effective and safe in more complex diseases or disease which have multisystemic effects. Means when a drug from a natural source is ingested, if Rasa first of all get manifested and its Rasa acts on target tissues and during the process its Vipaka process takes place and this portion of drug also works on the target tissues. During this process the most potent active principles also available for action to check the disease process thus any drug may have these three functional entities and combined affect of these three .The disease/ target specific pharmcological effect of some drugs is termed as Prabhava,which are fast acting & specific for that particular disease. Thus, the mechanism of action of natural drug a very complex and multi component actions hence combat the disease without any side affects.