Investigational peptide and peptidomimetic μ and δ opioid receptor agonists in the relief of pain.

INTRODUCTION Current methods for treating prolonged and neuropathic pain are inadequate and lead to toxicities that greatly diminish quality of life. Therefore, new approaches to the treatment of pain states are needed to address these problems. AREAS COVERED The review primarily reviews approaches that have been taken in the peer-reviewed literature of… (More)