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Oxytocin (Pitocin)

Oxytocin (OXT)

FDA Approved

Approved status applies to specific products, routes, and indications, not every use context discussed online.

An FDA-approved hormone injection (Pitocin) used in hospitals to start or strengthen labor contractions and to prevent excessive bleeding after delivery. It is also the brain's natural 'social bonding hormone,' being investigated for autism, schizophrenia, and other conditions, though no new uses have been officially confirmed yet.

11 studiesUpdated 2026-03-12Intravenous (IV) -- FDA-approved for labor induction/PPH · Intramuscular (IM) -- FDA-approved for PPH · Intranasal -- investigational/research use · Subcutaneous -- community/research use
Clinical bottom lineApproved

Oxytocin (Pitocin) is FDA-approved.

Use according to current labeled indication and prescribing guidance.

Safety Summary

The side effect profile differs substantially by route and indication. Obstetric IV use carries the highest risk (uterine hyperstimulation, water intoxication, fetal distress). Intranasal use in research settings shows a mild, mostly placebo-comparable profile (headache, nasal irritation). Community subcutaneous use reports are anecdotal. Prolonged intrapartum IV infusion can cause functional desensitization of uterine oxytocin receptors, paradoxically increasing risk of uterine atony and postpartum hemorrhage. Chronic intranasal use (weeks) in small trials was generally well-tolerated with no clinically significant tolerance or withdrawal. No abuse potential or dependence reported; FDA label NDA018248.

Clinical check-in

If real-world use or exposure is being considered, review potential interactions, contraindications, and monitoring needs with a licensed clinician rather than relying on summary copy alone.

See cited studies on this page (11)

Cited sources

Every claim on this page links to one of the 11 sources below. Identifiers are PubMed (PMID), ClinicalTrials.gov (NCT), or DOI; click through to the source of record before acting on a claim.

  1. 1PMID 34644479PubMed
  2. 2Intranasal oxytocin in young children with autism (multi-site RCT)Reference
  3. 3PMID 40121179PubMed
  4. 4PMID 30199447PubMed
  5. 5doi:10.1056/EVIDoa2300349DOI
  6. 6Intranasal Oxytocin and Physical Intimacy for Dermatological Wound Healing: A Randomized Clinical TrialReference
  7. 7Optimal dose of oxytocin for social impairments in ASD: meta-analysis of RCTsReference
  8. 8PMID 34379980PubMed
  9. 9Exogenous effects of oxytocin in five psychiatric disorders: systematic review and meta-analysesReference
  10. 10NCT06945926ClinicalTrials.gov
  11. 11Safety and tolerability of chronic intranasal oxytocin in older menReference