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Research Use Only18+Not for Human ConsumptionReconstitution Materials Not Supplied
Peptide Database

Reproductive & sexual-function research

Oxytocin (Pitocin): Research Overview

Hormone involved in childbirth and social behaviour. Approved for labour; studied in social cognition.

Also known as Pitocin · Syntocinon

Research use onlyStrongest evidence: study type not statedReviewed
DatabaseReferences

What is Oxytocin?

Nine-amino-acid peptide hormone produced in hypothalamus, released by posterior pituitary. Functions in social bonding, trust, empathy, reproduction, childbirth, lactation. FDA-approved synthetically for labor induction and postpartum hemorrhage.

What is Oxytocin researched for?

  • Initiates or augments uterine contractions when vaginal delivery medically indicated.
  • Controls postpartum bleeding through uterine contraction stimulation during third stage.
  • Adjunctive therapy for incomplete or inevitable abortion in second trimester.
  • Extensive research with mixed results on social functioning; optimal dosing unclear.
  • Decreases amygdala reactivity to social threats; normalizes brain connectivity.
  • Improves libido, arousal, orgasm intensity in both sexes.

How does Oxytocin work?

Binds oxytocin receptors on uterine smooth muscle, triggering calcium influx and myometrial contractions. Stimulates prostaglandin release. In CNS, modulates GABAergic, serotonergic, dopaminergic neurotransmission; reduces cortisol and HPA axis activity.

Reported targets: oxytocin receptor

Pharmacokinetics

  • Combined with exposure therapy; shows reduced PTSD/depression symptoms.

References

  1. Intranasal Oxytocin in Autism Spectrum Disorder

    2021

    N=290 children/adolescents; 48 IU daily; 24 weeks. Did not significantly improve social functioning vs placebo; highlights need for better patient selection.

  2. Oxytocin Augmented Prolonged Exposure Therapy for PTSD

    2019

    Veterans with PTSD; 40 IU intranasal combined with PE therapy. Lower PTSD and depression symptoms; higher therapeutic alliance vs placebo.

  3. Intranasal Oxytocin for Obesity

    2024

    N=61 adults with obesity; 24 IU four times daily; 8 weeks. No weight loss but significant reduction in caloric intake; improved mental health-related quality of life.

Common questions

Does intranasal oxytocin actually improve social anxiety, or is it just a placebo?

Research shows oxytocin decreases amygdala reactivity to social threats and normalizes brain connectivity related to social processing. It's not a placebo, but it's not a miracle either. The effects are measurable in brain imaging and behavioral tests, though the magnitude varies between individuals. Many people need consistent dosing to see benefits.