Charak Samhita
मरिचं शिग्रुबीजानि विडङ्गं च फणिज्झकम्। एतानि सूक्ष्मचूर्णानि दद्याच्छीर्षविरेचनम्॥१७॥
Sirsha virechana (purification of head) should be given using very fine powder of maricha (black peper/Piper indicum), shigrubija (seeds of Moringa olifera), vidanga (Embelia ribes) and phaninjjaka (Marubaka- Origanum majorana).
english translation
maricaM zigrubIjAni viDaGgaM ca phaNijjhakam। etAni sUkSmacUrNAni dadyAcchIrSavirecanam॥17॥
hk transliteration by Sanscript