Novel drug carriers for oral administration of drugs difficult to oral administration and preparation method thereof

摘要

The present invention provides novel drug carriers or pharmaceutically acceptable salts thereof for oral administration of drugs that are difficult to oral administration. The drug carrier or pharmaceutically acceptable salt thereof of the present invention shows excellent body absorption rate without degrading the biological activity of the drug when orally administered in combination with a drug that is difficult to be orally administered, and can be easily prepared with only a short manufacturing step. It is very advantageous in terms of mass production.