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5-HT2A receptor antagonist
Volinanserin is a highly selective 5-HT2A receptor antagonist.- Hugo R Arias, .et al. , Eur J Pharmacol, 2024, Mar 5:966:176329 PMID: 38253116
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5-HT1C receptor antagonist
Clozapine N-oxide is a major metabolite of Clozapine noted to decrease SR-2A (5-HT2 serotonin receptor) density in vitro.- Kazuhei Niitani, .et al. , J Pharmacol Sci, 2025, Sep;159(1):1-7 PMID: 40713343
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H1 antagonist
Asenapine shows high affinity (pKi) for numerous receptors, including the serotonin 5-HT1A (8.6), 5-HT1B (8.4), 5-HT2A (10.2), 5-HT2B (9.8), 5-HT2C (10.5), 5-HT5A (8.8), 5-HT6 (9.5), and 5-HT7 (9.9) receptors, the adrenergic α1 (8.9), α2A (8.9), α2B (9.5), and α2C (8.9) receptors, the dopamine D1 (8.9), D2 (8.9), D3 (9.4), and D4 (9.0) receptors, and the histamine H1 (9.0) and H2 (8.2) receptors.- Keisuke Obara, .et al. , Biol Pharm Bull, 2021, 44, 1140-1150 PMID: 34334499
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5-HT2C serotonin receptor antagonist
N-Desmethylclozapine is a potent and selective 5-HT2C serotonin receptor antagonist- Orwa Albitar, .et al. , Separation Science Plus, 2022, March 27
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5HT1A antagonist
WAY-100635 was originally believed to act as a selective 5-HT1A receptor antagonist, but subsequent research showed that it also acts as potent full agonist at the D4 receptor.
- Qi Liu, .et al. , Environ Sci Technol, 2024, Apr 30;58(17):7577-7587 PMID: 38630542
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5-HT2C receptor antagonist
Puerarin is one of several known isoflavones. Puerarin is a 5-HT2C receptor and benzodiazepine site antagonist. Puerarin is being investigated as a self-microemulsifying drug delivery system.- Takashi Azuma, .et al. , SEP PURIF TECHNOL, 2019, Apr; 212: 483-489
- Azuma T, .et al. , Environ Sci Pollut Res Int, 2017, Aug;24(23):19021-19030 PMID: 28660504
- Azuma T, .et al. , Sci Total Environ, 2016, Apr 1;548-549:189-197 PMID: 26802347
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5-HT1D receptor antagonist
BRL-15572 is a selective h5-HT1D antagonist, displaying 60-fold selectivity over h5-HT1B, and exhibiting little or no affinity for a range of other receptor types.
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5-HT3 antagonist
Tropisetron is a serotonin 5-HT3 receptor antagonist used mainly as an antiemetic to treat nausea and vomiting following chemotherapy. -
Serotonin 5HT3-receptor antagonist
Alosetron Hydrochloride(1:X) (GR 68755 Hydrochloride(1:X)) is a Serotonin 5HT3-receptor antagonist that is used in treatment of irritable bowel syndrome. -
5-HT6 receptor antagonist
SB271046 Hydrochloride is a potent, selective and orally active 5-HT6 receptor antagonist with pKi of 8.9. -
5-HT antagonist
Tegaserod functions as a motility stimulant, achieving its desired therapeutic effects through activation of the 5-HT4 receptors of the enteric nervous system in the gastrointestinal tract. It also stimulates gastrointestinal motility and the peristaltic reflex, and allegedly reduces abdominal pain. Additionally, tegaserod is a 5-HT2B receptor antagonist. -
D2/5-HT2 receptor antagonist
Blonanserin is a D2/5-HT2 receptor antagonist; atypical antipsychotic. -
5-HT4 receptor antagonist
5-HT4 antagonist 1 is a 5-HT4 receptor antagonist with a pKi of 9.6. -
5-HT2A receptor antagonist
Lumateperone Tosylate is a 5-HT2A receptor antagonist (Ki = 0.54 nM), a partial agonist of presynaptic D2 receptors and an antagonist of postsynaptic D2 receptors (Ki = 32 nM), and a SERT blocker (Ki = 61 nM). -
5-HT1F antagonist
LY 334370 hydrochloride is a selective 5-HT1F receptor agonist (Ki values are 1.87, 16.4, > 100 (IC50)). CAS: 199673-74-0(LY 334370 hydrochloride); 182563-08-2 (LY 334370 Free Base) -
5-HT2 antagonist
Sarpogrelate hydrochloride (MCI-9042), a selective 5-HT2 antagonist, has been widely used as an anti-platelet agent for the treatment of PAD. -
5-HT3 receptor antagonist
Ondansetron hydrochloride is a serotonin 5-HT3 receptor antagonist. -
5-HT3 receptor antagonist
Dolasetron is a serotonin 5-HT3 receptor antagonist used to treat nausea and vomiting following chemotherapy. Its main effect is to reduce the activity of the vagus nerve, which is a nerve that activates the vomiting center in the medulla oblongata. It does not have much antiemetic effect when symptoms are due to motion sickness. -
5-HT3 receptor antagonist
Dolasetron mesylate is a selective 5-HT3 receptor antagonist. -
5-HT1A receptor antagonist
Alprenolol (hydrochloride) is a non-selective beta blocker as well as 5-HT1A receptor antagonist. -
Serotonergic receptor antagonist
(Z)-Thiothixene is an antagonist of serotonergic receptor extracted from patent US 20150141345 A1. -
5-HT receptor /dopamine receptors antagonist
Metergoline is a psychoactive drug of the ergoline chemical class which acts as a ligand for various serotonin and dopamine receptors. -
serotonin/histamine2 antagonist
Cyproheptadine hydrochloride sesquihydrate is an antihistamine and is an antagonist of serotonin and histamine2. -
5-HT3 receptor antagonist
Azasetron HCl is a selective 5-HT3 receptor antagonist with IC50 of 0.33 nM used in the management of nausea and vomiting induced by cancer chemotherapy. -
5-HT (serotonin)/dopamine receptor antagonist
Ziprasidone Hcl(CP-88059 Hcl) is a combined 5-HT (serotonin) and dopamine receptor antagonist which exhibits potent effects of antipsychotic activity. -
5-HT6 receptor antagonist
SB 399885 is a potent, brain penetrant, and orally active SR-6 antagonist. It displays > 200-fold selectivity for SR-6 over other serotonin receptors (pKi values are 9.11, 8.81 and 9.02 for human recombinant, native rat and native human SR-6 receptors, respectively).
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combined Ca2+/5-HT2 antagonist
Nexopamil racemate is the racemate of Nexopamil. Nexopamil is a combined Ca2+/5-HT2 antagonist on thrombus formation in vivo and on platelet aggregation in vitro. -
5-HT2 receptor antagonist
Methiothepin mesylate is a potent and non-selective 5-HT2 receptor antagonist, with pKds of 7.10 (5-HT1A), 7.28 (5HT1B), 7.56 (5HT1C), 6.99 (5HT1D), 7.0 (5-HT5A), 7.8 (5-HT5B), 8.74 (5-HT6), and 8.99 (5-HT7), and pKis of 8.50 (5HT2A), 8.68 (5HT2B), and 8.35 (5HT2C). -
5-HT3 /5-HT4 receptor dual antagonist
FK1052 hydrochloride is a potent 5-HT3 and 5-HT4 receptor dual antagonist. -
5-HT6 receptor antagonist
Masupirdine free base (SUVN-502 free base) is a potent, selective, orally bioavailable, and brain penetrant 5-HT6 receptor antagonist (Ki of 2.04 nM for human 5-HT6 receptor). -
5-HT2A/α1-adrenergic receptor antagonist
Lidanserin is a drug which acts as a combined 5-HT2A and α1-adrenergic receptor antagonist. -
5-HT2A/dopamine D2 antagonist
Abaperidone is a potent antagonist of 5-HT2A?receptor and dopamine D2 receptor with IC50s of 6.2 and 17 nM. -
5HT3-receptor antagonist
Alosetron is s Serotonin 5HT3-receptor antagonist that is used in treatment of irritable bowel syndrome. -
5-HT3 antagonist
Granisetron is a serotonin 5-HT3 receptor antagonist used as an antiemetic to treat nausea and vomiting following chemotherapy. -
5HT1A antagonist
WAY-100635 maleate is a potent and selective 5-hydroxytryptamine1A antagonist with an IC50 of 0.95 - 0.12 nM for 5-HT. -
5-HT/dopamine receptor antagonist
Ziprasidone is a combined 5-HT (serotonin) and dopamine receptor antagonist which exhibits potent effects of antipsychotic activity. -
5-HT3 receptor antagonist
Ricasetron is a drug which acts as a selective antagonist at the serotonin 5-HT3 receptor. -
5HT3 receptor antagonist
Lerisetron is a serotonin type 3 (5-HT3) receptor antagonist with antiemetic activity.

