There is a lot of truth in this summary, but it is also simplistic. There is no doubt that Native Americans suffered enormously at the hands of white Americans, but federal Indian policy was shaped as much by paternalism, however misguided, as by white greed.
Quick Answer. Magnesium citrate is a saline laxative that generally produces a bowel movement within 30 minutes to three hours, according to WebMD. While patients sometimes use it for relief of constipation, whenever possible they should choose milder laxatives. Some surgical procedures require preparation using magnesium citrate with other laxatives.
How long do they last? The HyperHEPA filter lasts up to 4 years, the V-5 Cell Gas and Odor Filter up to 2 years, and the PreMax Prefilter lasts up to 18 months. These estimates assume average usage for 10 hours per day on speed 3. Your actual filter life will vary based on usage and environmental conditions.