Fiber laxatives are safe, including “Benefiber”. Laxatives to avoid are mostly magnesium containing laxatives such as Milk of Magnesia and Magnesium Citrate. Mixtures of Polyethylene Glycol (PEG) with electrolytes are also safe when mixed in water. Brand names for PEG with electrolytes include Miralax, Glycolax, Golytely, Nulytely, and Colyte.
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