Reviewed by Peptide Treatments Medical Advisory Board
Oxytocin: Side Effects & Safety
Known side effects, safety considerations, and adverse reaction data for Oxytocin.
Back to Oxytocin overviewData source: These side effects are documented in FDA-approved prescribing information.
Reported Side Effects (8 items)
| # | Side Effect |
|---|---|
| 1 | Uterine hyperstimulation (5-10%, obstetric use) |
| 2 | Nausea (5-10%) |
| 3 | Nasal congestion (10-15%, intranasal use) |
| 4 | Headache (10-15%, intranasal use) |
| 5 | Irritability (5-10%, intranasal use) |
| 6 | Paradoxical anxiety (<5%, intranasal use) |
| 7 | Uterine rupture (<1%, serious) |
| 8 | Hyponatremia (rare, with prolonged IV infusion) |
Known Drug Interactions
Important: Only documented and contraindicated interactions are shown here. View all interactions including theoretical →
| Drug | Classification | Mechanism |
|---|---|---|
| prostaglandins (dinoprostone, misoprostol) | Documented | Synergistic uterotonic effect increases risk of uterine hyperstimulation — use with caution and monitoring |
| other oxytocic drugs (carboprost) | Documented | Additive uterine contraction — avoid concurrent use |