Current WHO guidance on treatment for PPH due to uterine atony comprises two major elements—first response interventions, including uterotonic drugs (primarily oxytocin), isotonic crystalloids, tranexamic acid and uterine massage; and, if necessary, interventions for refractory PPH, including compressive measures (aortic compression or bimanual uterine compression), Intrauterine balloon tamponade and non‐pneumatic anti shock garment (NASG) [10]. Here, OXT is linked to pulmonary arterial hypertension.