When taken by itself (not mixing it with other substances), the greatest risk when taking Kratom may be falling asleep while engaged in hazardous activities. Like any other substance that may be mind altering or affect your cognitive abilities, do not drive or operate heavy machinery while under the influence of Kratom. Always use common sense. Due to the lack of medical studies regarding the use of Kratom in relation to pregnancy, pregnant women should not take any drug or medication except at the medical advice from their physician. It is not known whether it could cause birth defects or fetal death. Once again, always use common sense regarding anything that you put in your body.