Constipation
"took 2 pills around 10 p.m. continued to drink around 4 water bottles before falling asleep at about 12.  Woke up at 5:15 with some pretty harsh pain and cramping in my stomach along with nausea. Went to the bathroom and sat on the toilet for a couple hours with diarrhea, in the end it did exactly what it was intended to. Stomach pain is harsh but it gets the job done."