Selective 5-HT2A receptor antagonist (pKi values are 8.52, 7.43 and 6.57 for 5-HT2A, 5-HT2C and 5-HT2B receptors respectively). Displays selectivity over 5-HT1, 5-HT3, 5-HT4 H1, H2, M3, α1-adrenergic, α2-adrenergic and β-adrenergic receptors. Displays cardioprotective activity in vivo.