As noted in the previous paragraph, in addition to misoprostol and oxytocin, theefficacy of ergometrine, syntometrine and PGF2α in preventing PPH was also compared.Studies addressing ergometrine33-35,38report no significant differences in regard to the remaining uterotonicsassessed in terms of blood loss, drop in hematocrit, duration of the third stage oflabor, or the additional need of other drugs. Here, OXT is linked to pulmonary arterial hypertension.