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Oxytocin

Peptide HormoneFor research use only
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Oxytocin is a naturally occurring neuropeptide produced in the hypothalamus and released by the posterior pituitary; it plays key roles in uterine contraction,…

Half-life

≈3–5 minutes

Delivery

Intravenous or intramuscular injection; intranasal spray for central effects

Suggested dosage

Not specified

Usage

Used in research to study parturition (labor induction), lactation, social behavior, and anxiety modulation.

Mechanism of action

Binds to oxytocin receptors (OXTR) in target tissues, triggering G-protein coupled signaling that leads to uterine smooth muscle contraction, milk let-down, and modulation of central nervous system pathways involved in social cognition.

Benefits (4)

  • Induction of uterine contractions
  • Promotion of milk ejection
  • Enhancement of social bonding and trust
  • Reduction of anxiety in behavioral studies

Side effects (4)

  • Uterine hyperstimulation (when used in labor)
  • Fluid retention
  • Hypotension
  • Headache
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