- Angiotensin II
- Beta-endorphin
- Bombesin
- Bradykinin
- Calcitonin
- Cholecystokinin
- Corticotropin
- Corticotropin Releasing hormone
- Dynorphin
- Enkephalin
- Galanin
- Gastrin
- Glucagon
- Insulin
- Lutropin (Luteinizing hormone)
- Motilin
- Neuropeptide Y
- Neurotensin
- Oxytocin
- Prolactin
- Secretin
- Sleep peptides
- Somatostatin
- Substance P
- Thyrotropin
- Vasoactive intestinal peptide
- Vasopressin
