If the elimination is obstructed, incomplete or delayed then consume hot water. It reduces adhamana (distention of the abdomen), trishna (thirst), chhardi (vomiting) and vibhandha(constipation).
भेषजं दोषरुद्धं चेन्नोर्ध्वं नाधः प्रवर्तते| सोद्गारं साङ्गशूलं च स्वेदं तत्रावचारयेत्||७२||
If the administered drug is obstructed by the morbid dosha, unable to expel by upward & downward direction, associated with belching & bodyache, then appropriate swedana (fomentation) is given.
Even after adequate virechana, if person has belching of the drugs, then it has to be removed immediately by emesis. In the condition of excess elimination and when the administered drug is digested, then the purgation should be stopped with suitable sheetopachara (cold measures) by the physician.
कदाचिच्छ्लेष्मणा रुद्धं तिष्ठत्युरसि भेषजम्| क्षीणे श्लेष्मणि सायाह्ने रात्रौ वा तत्प्रवर्तते||७४||
There may be possibilities of virechana drugs obstructed in the chest region (stomach) because of kapha, then elimination starts in the evening or night after the reduction of kapha.
The purgative drugs will be digested in the persons, who are ruksha (dryness in body) and indulge in fasting. This aggravates the vata dosha, obstructs the drugs and moves in upper direction without purgation. This is treated with other purgative combination mixed with sneha (unctuous substance) & lavana (salt).