This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Pharmacology
All the statements are True regarding Selexipag except? 
Select and explain. 
A. Selective IP receptor antagonist, B. Prostacyclin receptor agonist, C. Used in Pulmonary Hypeension, D. Adverse effects of Selexipag are similar to those of PGI2 analogues
A: Selective IP receptor antagonist
Answer: A: Selective IP receptor antagonist 
Explanation: Selexipag is an orally active, Selective IP receptor agonist(Prostacyclin Receptor Agonist) . Selexipag has shown to reduce Morbidity and Moality in patients with Pulmonary HT . A/E : similar to those of PGI2 analogues and include headache, jaw pain, nausea, dizziness, flushing, nasopharyngitis and vomiting. Adverse effects appear to be more common when the drug is taken while fasting . MOA :