The terms proximal (from Latin proximus, meaning 'nearest') and distal (from Latin distare, meaning 'to stand away from') are used to describe parts of a feature that are close to or distant from the main mass of the body, respectively.
But, with Citrucel and/or Metamucil you can start with one teaspoon mixed in water or juice. If you have diarrhea don't use the preparation with artificial sweeteners. Use the one with sugar. I think artificial sweeteners (some of them) might cause more diarrhea.
Uses: Metamucil is approved for Constipation, Gastrointestinal Gas, Diarrhea and Bloating and is mostly mentioned together with these indications. In addition, our data suggest that it is taken for IBS, although it is not approved for this condition*. Read More.