In a person who consumes ruksha ahara (diet with excess dry items), performs regular exercise, has good appetite, the morbid of dosha are reduced by karma (activities), exposure to vata(air), atapa (sunlight), agni (fire). Even they can tolerate the untoward affects of viruddha (incompatible diet) & adhyashana (frequent eating) .
These persons are subjected to sneha to protect from vata prakopa without shodhana ( purification therapy). Shodhana can be performed only when they are afflicted by the illness indicated for shodhana.
The employment of snigdha virechana(unctuous purgatives) is contraindicated in atisnigdha persons. To manage the morbidity caused by excess snehana, ruksha virechana (non-unctuous purgatives) is advised.
एवं ज्ञात्वा विधिं धीरो देशकालप्रमाणवित्| विरेचनं विरेच्येभ्यः प्रयच्छन्नापराध्यति||८४||
The wise physician if employed the virechana in the person who are fit for the purgative therapy as per the desha (habitat), kala (season), and pramana (body proportion) will not give room for injustice.
विभ्रंशो विषवद्यस्य सम्यग्योगो यथाऽमृतम्| कालेष्ववश्यं पेयं च तस्माद्यत्नात् प्रयोजयेत्||८५||
Improper employment (selection & administration) of shodhana causes dreadful effect similar to visha, where as fruitful effect if used properly. Maximum effort is made to carry out proper shodhana essentially when ever it is needed.