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.
Vomiting and diarrhea are ways your body uses to rid itself of harmful substances such as bacteria. DO NOT use antidiarrheal or antivomiting (antiemetic) medicines unless your healthcare provider tells you to do so. Aspirin, medicine with aspirin, and many aspirin substitutes can irritate your stomach. So avoid them when you have stomach upset. Certain prescription and over-the-counter medicines can cause vomiting and diarrhea.