1、Peptides are easy to synthesize and optimize combinations, and their medicinal value can be quickly determined.
2、The half -life of peptides is generally short and unstable.
3、Compared with macromolecular proteins, polypeptide chemical synthesis technology matures.
4、The biggest problem with peptide drugs is that they cannot be taken orally.
5、Some peptide drugs and small molecule drugs, less drug use, more selective, better specificity, better effect, less side effects.
6、Peptides lack cell membrane permeability and affect cell absorption.