Oxytocin receptor antagonist (anti-contraction medicine)
Last reviewed July 2026
Who is this for?
Atosiban is an injection that works by blocking a natural hormone called oxytocin, which causes the womb to contract. This helps stop premature labour (when a baby is trying to come too early).
Blocks oxytocin receptors on uterine myometrial cells, inhibiting oxytocin-induced uterine contractions and delaying preterm labour.
Premature labour (threatened preterm birth), stopping early contractions of the womb between 24 and 33 weeks of pregnancy
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
Since this drug is given continuously by hospital staff through a drip, missing a dose on your own is not really possible. Your medical team will monitor and manage the infusion for you.
This drug must only be given in a proper hospital, never from roadside sellers or at home. Always make sure a qualified doctor or midwife is supervising you. If contractions return after treatment, go back to the hospital immediately.
Atosiban should not be used together with other drugs that also try to stop labour contractions (like salbutamol drip or nifedipine) at the same time unless your doctor says so. Let your doctor know about any other medications you are taking.
Check your specific combination
Is it safe to take Atosiban with your other drugs?
Atosiban is specifically used DURING pregnancy to delay premature birth, but only under strict hospital supervision. It is not safe for breastfeeding mothers, so consult your doctor.
Store in a cool, dry place away from direct sunlight and heat. In Nigerian weather, keep it in a refrigerator if instructed or in an air-conditioned pharmacy store. Keep out of reach of children. Do not use if the liquid looks cloudy or has particles.
For information only: not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under, especially in Nigerian and West African pharmacies
Tap a brand for packaging, NAFDAC details and authenticity check
Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.