Why are most peptides not orally active?

scienceoralstability

Many peptides are not orally active because they may be degraded by:

  • Stomach acid
  • Digestive enzymes
  • First-pass metabolism

Additionally, peptides often have difficulty crossing the intestinal barrier. Some modified peptides and specialized formulations are studied to improve oral stability, but results vary widely.

Last updated . For research use only. Not medical advice.

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