The annual number of calls related to kratom that were made to poison control centers in the U.S. increased from 13 calls in 2011 to 682 calls in 2017, a 52.5-fold increase, according to findings recently published in Clinical Toxicology.
That is the equivalent of going from about one call a month to two calls a day. Almost two-thirds (65%) of these exposures occurred from 2016 through 2017