Biyan Pian is a sugar-coated pill with a brown core. It is used in Traditional Chinese medicine

Traditional Chinese medicine

Traditional Chinese Medicine refers to a broad range of medicine practices sharing common theoretical concepts which have been developed in China and are based on a tradition of more than 2,000 years, including various forms of herbal medicine, acupuncture, massage , exercise , and dietary therapy...

 to "dispel wind and remove toxic heat from the nose". It is slightly aromatic in odor and bitter in taste. Biyan Pian is used when there is "acute and chronic sinusitis".
In 2011, Health Canada issued a recall of Biyan Pian, due to high levels of mercury. The levels were nearly ten times higher than the daily maximum set by Health Canada.

Chinese classic herbal formula

Name	Chinese (S)
Fructus Xanthii	苍耳子
Flos Magnoliae	辛夷
Radix Saposhnikoviae	防风
Fructus Forsythiae	连翘
Flos-Chrysanthemi Indici	野菊花
Fructus Schisandrae Chinensis seu Fructus Schisandrae Sphenantherae	五味子
Radix Platycodi	桔梗
Radix Angelicae Dahuricae	白芷
Rhizoma Anemarrhenae	知母
Herba Schizonepetae	荆芥
Radix Glycyrrhizae	甘草
Cortex Phellodendri	黄柏
Herba Ephedrae	麻黄
Herba Asari	细辛