Two brands of traditional Chinese medicine with a common origin are headed to court over a trademark dispute.

Zhangzhou Pien Tze Huang Pharmaceutical Co recently announced that it had filed a lawsuit against Xiamen Traditional Chinese Medicine Co, claiming that the defendant infringed on its right to the trademark of its top product Pien Tze Huang, according to a report from National Business Daily.

In the announcement, it also made allegations of unfair competition, saying the Xiamen company's advertisement made false comparisons between its own Babao Dan and Pien Tze Huang, causing injury to the latter's reputation.