Tinley Park passed an ordinance Tuesday to prohibit the sale, distribution and use of kratom, prompting objections from businesses and advocates, but granted a 12-month amnesty period for businesses primarily profiting from kratom sales, and a six-month period for those selling it as an accessory. The ordinance when fully implemented would ban all novel synthetic and psychoactive drug products. Kratom is an herbal substance from Southeast Asia commonly used for pain relief, mood enhancement and withdrawal symptoms. The ordinance prohibits the sale of psychoactive substances but does not restrict their possession.