Drug interactions
Norepinephrine + Oxytocin
Severity: Moderate
Norepinephrine and Oxytocin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Both oxytocin and norepinephrine can raise blood pressure, and oxytocin given with vasoconstrictors has been associated with severe hypertension. In obstetric settings, this may compromise maternal hemodynamic stability. Oxytocin can also cause hypotension when given as a rapid bolus, which complicates the picture.
What this interaction means in plain words
Norepinephrine and Oxytocin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive pharmacodynamic pressor and vasoconstrictive effects.
What to do
Monitor blood pressure and heart rate continuously during coadministration. Titrate norepinephrine to the target blood pressure and avoid rapid oxytocin boluses.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Oxytocin
- Carboprost tromethamine + Oxytocin Major
- Dinoprostone + Oxytocin Major
- Ephedrine + Oxytocin Major
- Fexinidazole + Oxytocin Major
- Givinostat + Oxytocin Major
- Misoprostol + Oxytocin Major
Frequently asked questions
Can I take Norepinephrine with Oxytocin?
MediHelp rates the interaction as moderate. Norepinephrine and Oxytocin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both oxytocin and norepinephrine can raise blood pressure, and oxytocin given with vasoconstrictors has been associated with severe hypertension. In obstetric settings, this may compromise maternal hemodynamic stability. Oxytocin can also cause hypotension when given as a rapid bolus, which complicates the picture.
How serious is the interaction between Norepinephrine and Oxytocin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate continuously during coadministration. Titrate norepinephrine to the target blood pressure and avoid rapid oxytocin boluses.
What other medicines interact with Oxytocin?
MediHelp also lists interactions of Oxytocin with, for example, Carboprost tromethamine, Dinoprostone, Ephedrine. The full list is on the Oxytocin page.
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