The Compendium of Caraka 6.15.172

6.15.172

saptakṛtvaḥ srutasyāsya &kṣārasya dvyāḍhakena tu/
āḍhakaṃ sarpiṣaḥ paktvā pibedagnivivardhanam//
iti kṣāraghṛtam/
samūlāṃ pippalīṃ pāṭhāṃ cavyendrayavanāgaram/
citrakātiviṣe hiṅgu śvadaṃṣṭrāṃ kaṭurohiṇīm//

With two āḍhakas of this alkali-water strained seven times, / having cooked one āḍhaka of ghee, one should drink it to increase digestive fire.
Thus ends kṣāraghṛta.
Pippalī together with its roots, pāṭhā, cavya, indrayava, dry ginger, / citraka, ativiṣā, hiṅgu, śvadaṃṣṭrā, kaṭurohiṇī,