CHIANG MAI – Police raided an illegal kratom workshop in the heart of Chiang Mai city, arresting 7 teenagers at the site, along with a large stash of kratom and cough syrup. Officers had received information about a group of young people gathering there and selling a mix of kratom extract and cough syrup to their peers, both directly and online. They also discovered batches of kratom syrup ready for bottling. What is the Kratom Cough Syrup Mix? This drink is a combination of kratom (a local plant with both stimulant and opioid-like effects), cough syrup, soft drinks, and ice.