Abstract：This paper provides an overview of the current state of pharmacotherapy in children with pulmonary arterial hypertension (PAH) and a brief introduction to the potentially novel pharmacologic targets for PAH. Currently, 3 classes of drugs including prostacyclin analogues, endothelin receptor antagonists and phosphodiesterase-5 inhibitors are approved for the treatment of PAH in children, which has led to improved hemodynamics, increased exercise capacity and prolonged survival. Despite these improvements, there is still a need to carry out well-designed, randomized, controlled studies with larger samples. In addition, novel drugs targeting other molecular pathways should be developed.
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