The oral colon specific targeting drug-delivery system(OCSTDS) are easy to use and can increase the local drug level of colon in treatment of gastrointestinal diseases.

Only recently have the peroral or dermal use been evaluated. Drugs encapsulated into SLN showed a reduced peak plasma concentration and prolonged therapeutic drug level following oral administration.

If Canada level pricing came to the United States, the industry's profit margins would drop and the pace of new drug development would slow.