Charak Samhita
ऊर्ध्वानुलोमभागानामित्युक्तानि शतानि षट्। प्राधान्यतः समाश्रित्य द्रव्याणि दश पञ्च च॥४२॥
a total number of 600 formulations are formulated by using 15 important herbs.
english translation
UrdhvAnulomabhAgAnAmityuktAni zatAni SaT। prAdhAnyataH samAzritya dravyANi daza paJca ca॥42॥
hk transliteration by Sanscript