Viral dance challenge lifted Chinese ibuprofen maker’s shares – now they are languishing

When an ibuprofen dance challenge went viral on the Chinese social media platform Douyin in late 2022 during the Covid-19 pandemic, shares of the country’s leading ibuprofen maker surged more than 200 per cent in two weeks. Now profits at Shandong Xinhua Pharmaceutical are plunging, and it is not al