Bioactivity | Iloperidone (HP 873) is a D2/5-HT2 receptor antagonist. Iloperidone is an atypical antipsychotic for the schizophrenia symptoms[1][2]. | ||||||||||||
Invitro | Iloperidone displays higher affinity for the dopamine D3 receptor (Ki=7.1 nM) than for the dopamine D4 receptor (Ki=25 nM). Iloperidone displays high affinity for the 5-HT6 and 5-HT7 receptors (Ki=42.7 and 21.6 nM, respectively), and is found to have higher affinity for the 5-HT2A (Ki=5.6 nM) than for the 5-HT2C receptor (Ki=42.8 nM)[1]. | ||||||||||||
In Vivo | Iloperidone is eliminated slowly, with a mean t1/2 of 13.5 to 14.0 hours. Coadministration with food did not significantly affect AUC, tmax, or Cmax. 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]. | ||||||||||||
Name | Iloperidone | ||||||||||||
CAS | 133454-47-4 | ||||||||||||
Formula | C24H27FN2O4 | ||||||||||||
Molar Mass | 426.48 | ||||||||||||
Appearance | Solid | ||||||||||||
Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
Storage |
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Reference | [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. [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. [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. |