Although kratom in low doses is not known to interfere with a man's day-to-day actions, kratom users are guided not to perform any activity that requires their full attention, such as driving or handling heavy machinery. Kratom includes epicatechin, an anti oxidant. In addition, it contains alkaloids which can be said to have positive effects on an individual 's immune system. And maeng da kratom has also been found effective in lowering blood pressure.