Up to 73% (w/w) of commercial YinHuang drop pill (YHDP) was quantitatively analyzed.
Twenty-six small molecules were determined using UHPLC-Q-TOF-MS.
One excipient (PEG4000) was determined using UHPLC-CAD.
Carbohydrates were examined using HPGPC and HPLC-NH2P-ELSD.
The chemical profile of YHDP was quantitatively compared with other YinHuang preparations.