The Compendium of Bheḷa 6.8.32

6.8.32

unmādināṃ prayogo ' yaṃ purāṇaghṛtasaṃyutaḥ | etāḥ kriyāḥ prayuñjīta vaidyaḥ kāyacikitsakaḥ ||

this recipe, combined with aged ghee, is for the insane. / The internal medicine physician should employ these procedures;