Iloperidone  (Synonyms: HP 873)

Iloperidone (HP 873) is a D₂/5-HT₂ receptor antagonist. Iloperidone is an atypical antipsychotic for the schizophrenia symptoms^[1][2].

Iloperidone displays higher affinity for the dopamine D₃ receptor (K_i=7.1 nM) than for the dopamine D₄ receptor (K_i=25 nM). Iloperidone displays high affinity for the 5-HT₆ and 5-HT₇ receptors (K_i=42.7 and 21.6 nM, respectively), and is found to have higher affinity for the 5-HT_2A (Ki=5.6 nM) than for the 5-HT_2C receptor (K_i=42.8 nM)^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Iloperidone is eliminated slowly, with a mean t_1/2 of 13.5 to 14.0 hours. Coadministration with food did not significantly affect AUC, t_max, or C_max. These results indicate that the rate of iloperidone's absorption is decreased, but the overall bioavailability is unchanged, when the drug is taken with food. Orthostatic hypotension, dizziness, and somnolence were the most commonly reported adverse events^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

426.48

Solid

C₂₄H₂₇FN₂O₄

133454-47-4

CC(C1=CC=C(OCCCN2CCC(C3=NOC4=C3C=CC(F)=C4)CC2)C(OC)=C1)=O

Room temperature in continental US; may vary elsewhere.

• [1]. Kongsamut, S., et al., Iloperidone binding to human and rat dopamine and 5-HT receptors. Eur J Pharmacol, 1996. 317(2-3): p. 417-23.  [Content Brief]

  [2]. Sainati, S.M., et al., Safety, tolerability, and effect of food on the pharmacokinetics of iloperidone (HP 873), a potential atypical antipsychotic. J Clin Pharmacol, 1995. 35(7): p. 713-20.  [Content Brief]

  [3]. Albers, L.J., A. Musenga, and M.A. Raggi, Iloperidone: a new benzisoxazole atypical antipsychotic drug. Is it novel enough to impact the crowded atypical antipsychotic market? Expert Opin Investig Drugs, 2008. 17(1): p. 61-75.  [Content Brief]