The Compendium of Caraka 6.3.278

6.3.278

mucyate sahasā prāṇaiściraṃ kliśyati vā naraḥ/
etasmātkāraṇādvidvān vātike 'apyādito jvare//

is suddenly deprived of life, or suffers for a long time.
For this reason, the wise physician, even in a fever born of vāta, from the beginning—