DPI-221

DPI-221 is a opioid drug that is used in scientific research. It is a highly selective agonist for the δ-opioid receptor, which produces fewer convulsions than most drugs from this family. DPI-221 is a opioid drug that is used in scientific research. It is a highly selective agonist for the δ-opioid receptor, which produces fewer convulsions than most drugs from this family.