Oral peptide delivery is especially challenging for insulin tablets due to enzymatic degradation and low permeability in the gastrointestinal tract. This brief video presentation highlights the key barriers and emerging strategies that aim to make oral insulin a practical therapeutic option.

Brief video presentation

For a mechanistic overview of absorption pathways and formulation‑driven optimization strategies, see
Bioavailability: mechanistic basis and formulation‑driven optimization

A broader comparison across small molecules, peptides, and biologics is presented in
Bioavailability constraints and formulation strategies across molecular classes.

A notable example of academic progress in oral insulin technologies is the
Smart Insulin Pill Development project at the University of Sydney, which explores a novel capsule designed to deliver insulin directly through the intestinal wall.

Brief video presentation

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