I first purchased Endovan believing I had endometriosis and was taking too many pain pills. Well I do have a little endometriosis , but my cramping is from IBS D. Endovan is amazing it takes away the severe cramping in less 30 minutes. I have given it to friends with period cramps and IBS. It has worked for everyone. I am a loyal customer and am so happy to have something natural versus chemical pain killers. WORKS For pain.