Some private name-brand kindergartens are accused of giving children unauthorized prescription medicine, revealing chaos in kindergarten management, experts said.

One such kindergarten in Yichang, Hubei province, was being investigated on Monday after parents claimed their children were given unauthorized anti-viral drugs.

The Xingang Kindergarten in Yichang belongs to Hoing Education Group in Beijing, which says it owns more than 1,000 kindergartens in China and is the largest early-childhood enterprise in the country.