pFPP has been found in vitro to act mainly as a 5-HT1A receptor agonist, with some additional affinity for the 5-HT2A and 5-HT2C receptors.
The compound pFPP predominantly exerts its effects by stimulating the 5-HT1A receptor, while also displaying some binding affinity to the 5-HT2A and 5-HT2C receptors in laboratory settings.