Charak Samhita
वालकं च समं चूर्णं कृत्वाऽष्टगुणशर्करम् । सर्वथा तमके श्वासे हिक्कायां च प्रयोजयेत् ॥१२४॥
balaka (Vetiveria zizinioidis (Linn.) Nash.) is mixed with eight parts of sugar should be kept and us in tamaka shwasa and hikka.
english translation
vAlakaM ca samaM cUrNaM kRtvA'STaguNazarkaram । sarvathA tamake zvAse hikkAyAM ca prayojayet ॥124॥
hk transliteration by Sanscript