Had some pretty wicked opiate constapation, haven't gone an maybe 5-6 days so had a really bad impacted load that was way to painful to pass, so drank a bottle and a half of magnesius citrate and good God does that stuff work, been tetherd to to toilet all day so def cleaned me out, my only complaint is it didn't soften the "cap" of it all so still had to pass a large painfull turd before the water works...all in all tho I'm cleaned out n feelin great if you ever constspated grab the mag. citrate first