I've tried it all (pills, enemas, miralax, fiber stir in's, magnesium citrate) and the Mag Cit is the best and only option for me. I've had constipation of epic proportions since childhood, have tried a plethora of diets, was more active that most, drank plenty of fluids and ate plenty of quality fiber and nothing helped. Now I'm sick and don't eat well or move as much as I'd like so the problem is even worse. I won't tell you the he'll I've been through with trying to get it out but it's been horrible. Magnesium Citrate is a safe and effective solution if your problem is bad. You drink it then follow but drinking 16oz of water for best results. Within 2-24 hours you will see the cleansing of your life begin and will be so grateful and feel so much better. ((Hugs))