If the costs of misoprostol and oxytocin are set at the higher end listed by MSH (US$0.1786/200 μg misoprostol and US$0.7289/10 iU oxytocin) [20], there are no longer cost savings associated with misoprostol; there would be an additional cost of US$151 for the prevention of 22 cases of PPH under the hypothetical scenario of 40 % hospital births and 60 % community births. Here, OXT is linked to pulmonary arterial hypertension.