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.
You might be having questions as what does Metamucil do? Traditionally, Metamucil has been promoted as a laxative that helps in the smooth movement of bowels especially in individuals whose motions are irregular or infrequent. The medicinal supplement also helps one to get relief from diarrheic symptoms by adding bulk to stool.