The Rapid Response Kratom Single Drug Test Strip is an easy to use, 5 minute visual immunoassay for the qualitative, presumptive, detection of kratom in human urine specimens. The designed detection limit of kratom for the single drug test is 500 ng/mL. Mitragyna speciosa, more commonly known as Kratom, is a plant native to Southeast Asia. It contains alkaloids such as mitragynine and 7-hydroxymitragynine, which give it psychoactive effects similar to opium. As a result, kratom users can develop an addiction and experience withdrawal syndromes when they stop using it. Kratom is banned and classified as narcotic in many countries.