Charak Samhita
निःश्लेष्मपित्तमुदकं शोणितं कृष्णमेव वा। तृष्यतो मारुतार्तस्य सोऽतियोगः प्रमुह्यतः ॥१०॥
supernatant water or watery excretion of black colored blood without kapha and pitta, excessive thirst affliction with vitiated vata and fainting are the signs and symptoms of overpurgation.
english translation
niHzleSmapittamudakaM zoNitaM kRSNameva vA। tRSyato mArutArtasya so'tiyogaH pramuhyataH ॥10॥
hk transliteration by Sanscript