Peptide · Approved

Oxytocin

The 'bonding' hormone; medically used to induce labour and control postpartum bleeding.

Key facts

  • Also known as: Pitocin, Syntocinon
  • Status: Approved
  • Used for: Labour, bonding hormone
  • Natural counterpart: Identical to the natural hormone made in the hypothalamus.
  • Target enzyme / receptor: Oxytocin receptor (OXTR) — class A GPCR
  • Signalling pathway: Gαq → PLCβ → IP3 / DAG → intracellular Ca²⁺ release
    In plain terms: Triggers calcium release that makes the uterus contract and shapes bonding.
  • Crystal / cryo-EM structure: Available  PDB 7RYC ↗
  • Sequence: CYIQNCPLG-NH2 (disulfide Cys1–Cys6)

Status & safety

This is an approved medicine — prescription-only in most countries. Only use it under a licensed clinician, obtained through a pharmacy.

Research & clinical studies

Explore the biochemistry and clinical evidence for Oxytocin — these open live, date-sorted searches, so they always show the latest.

Read research papers on PubMed ↗

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