Charak Samhita
यच्च सर्पिर्महातिक्तं पित्तकुष्ठनिबर्हणम् । निर्दिष्टं तदपि प्राज्ञो दद्याद्वीसर्पशान्तये ॥६२॥
[Formulations for dosha situated in koshtha, pitta dominant visarpa and virechana] The mahatikta ghritam indicated in paittika kustha should also be given by the intelligent physician for the alleviation of visarpa.
english translation
yacca sarpirmahAtiktaM pittakuSThanibarhaNam । nirdiSTaM tadapi prAjJo dadyAdvIsarpazAntaye ॥62॥
hk transliteration by Sanscript