Eplivanserin (SR-46349) (SR-46349) 是一种有效、选择性和口服活性的 5-HT2A 受体拮抗剂，在大鼠皮质膜中的 IC50 为 5.8 nM，Kd 为 1.14 nM。
Eplivanserin is a potent, selective and orally available 5-HT2 receptor antagonist, with an IC50 of 5.8 nM in rat cortical membrane, and a Kd of 1.14 nM.
Eplivanserin is a potent, selective and orally available 5-HT2 antagonist, with an IC50 of 5.8 nM in rat cortical membrane, and a Kd of 1.14 nM. Eplivanserin hemifumarate (SR 46349B) shows weak inhibition on other 5-HT kinases, with IC50s of 0.12 μM (Pig cortex 5-HT1C), 14 μM (Rat hippocampus 5-HT1A), and 16 μM (Rat stnatum 5-HT1B, Ox caudate nucleus 5-HT1D). Eplivanserin also has inhibitory effects on rat cortex adrenergic α1 and α2, rat whole brain histammine H1, Na+ channel, and rat striatum dopamine D1 and D2, with IC50s of 3.4 μM, 1.0 μM, 5.0 μM, 39 μM, 9 μM and 28 μM, respectively[1].
Eplivanserin hemifumarate (SR 46349B) inhibits 5-HT2 receptor binding of [3H]ketanserin with an ED50 of 0.087 mg/kg after i.p. injection, and 0.097 mg/kg after p.o administration in mice[1].
[1]. Rinaldi-Carmona M, et al. Biochemical and pharmacological properties of SR 46349B, a new potent and selective 5-hydroxytryptamine2 receptor antagonist. J Pharmacol Exp Ther. 1992 Aug;262(2):759-68.
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