दुर्बलं शोधितं पूर्वमल्पदोषं च मानवम्| अपरिज्ञातकोष्ठं च पाययेतौषधं मृदु||६७||
In weak persons, who underwent cleansing procedure earlier, when the accumulation of morbid dosha is less, unknown and unassessed koshtha (bowel), mild drugs (mridu shodhana dravya) shall be administered.
श्रेयो मृद्वसकृत्पीतमल्पबाधं निरत्ययम्| न चातितीक्ष्णं यत् क्षिप्रं जनयेत्प्राणसंशयम्||६८||
It is always best & safe to use the mridu shodhana dravyas (mild purification) repeatedly as they are less harmful rather than using the tikshana shodhana dravyas (strong purification), which may cause sudden threat to life.
When the amount of morbid dosha is high in a weak person, then the dosha can be eliminated by repeated administration of mild drugs. If not, this morbid dosha may end the life.
If the virechana medicine combined with the morbid kapha is vomited, then induce proper vamana to that person. After vamana give an appropriate kavala (holding medicine in mouth for gargling), langhana & virechana.