The Compendium of Caraka 6.7.101

6.7.101

etaireva ca sarpiḥ siddhaṃ vātolbaṇaṃ jayati kuṣṭham/
eṣa ca kalpo diṣṭaḥ khadirāsanadārunimbānām//

And ghee prepared with these very [drugs] overcomes kuṣṭha where vāta is predominant; / and this same procedure is prescribed for khadira, asana, devadāru, and nimba.