RS-127445 is a potent and selective antagonist at the serotonin 5-HT2B receptor, with around 1000x selectivity over the closely related 5-HT2A and 5-HT2C receptors.

RS 102895 hydrochloride is a chemokine receptor CCR2 antagonist.

Rolapitant (SCH619734) is a potent, selective and orally active neurokinin NK1 receptor antagonist with a Ki of 0.66 nM.

Risperidone(R 64 766) is a serotonin 5-HT2 receptor blocker(Ki= 0.16 nM) and a potent dopamine D2 receptor antagonist(Ki= 1.4 nM).

Rimonabant(SR141716) is a selective central cannabinoid (CB1) receptor inverse agonist with Ki of 1.8 nM.

Rimonabant Hcl(SR141716A) is a selective central cannabinoid (CB1) receptor inverse agonist with Ki of 1.8 nM.

RG7090(CTEP Derivative,Basimglurant, RO4917523) is a negative modulator of metabotropic glutamate receptor subtype 5 (mGluR5; GRM5).

Preladenant(SCH 420814) is a potent and selective antagonist at the adenosine A2A receptor.

PRE-084 hydrochloride is a high affinity, selective σ1 agonist (Ki values are 2.2 and 13091 nM for σ1 and σ2 receptors respectively).

Potent, selective CB1 cannabinoid receptor antagonist/inverse agonist (Ki values are 12 and 4200 nM for CB1 and CB2 receptors respectively). Increases locomotor activity following systemic administration in vivo. Analog of SR141716A (Ki = 14 nM).

Ponesimod(ACT-128800) is an orally active, selective sphingosine-1-phosphate receptor 1 (S1P1) immunomodulator with EC50 of 5.7 nM.

Plerixafor octahydrochloride(AMD3100 8HCL) is a chemokine receptor antagonist for CXCR4 and CXCL12-mediated chemotaxis with IC50 of 44 nM and 5.7 nM, respectively.

Pitolisant Hcl(BF2.649;Ciproxidine ) is a novel, potent, and selective nonimidazole inverse agonist at the recombinant human H3 receptor (Ki=0.16 nM).

Pirmenol hydrochloride inhibits IK.ACh by blocking muscarinic receptors. The IC50 of Pirmenol for inhibition of Carbachol-induced IK.ACh is 0.1 μM.

Pimavanserin(ACP-103) is a potent and selective 5-HT2A receptor inverse agonist with mean pIC50 of with 8.7 in the cell-based functional assay.

PF-3274167 is a high-affinity nonpeptide oxytocin receptor (OTR) antagonist, with Ki of 9.5 nM.

PD-168077 maleate is a selective dopamine D4 receptor agonist, with a Ki of 9 nM.

Pardoprunox(SLV-308) is a novel partial dopamine D2 and D3 receptor agonist and serotonin 5-HT1A receptor agonist; D2 (pKi = 8.1) and D3 receptor (pKi = 8.6) partial agonist (IA = 50% and 67%, respectively) and 5-HT1A receptor (pKi = 8.5) full agonist (IA

Ozanimod (RPC1063) is a selective S1P1R modulator

ONO-7300243 is a novel, potent LPA1(Lysophosphatidic Acid Receptor) antagonist with an IC50 of 160 nM.

Omidenepag is a potent, selective agonist human EP2 receptor with binding IC50/EC50 of 10/1.7 nM, >500-fold selectivity over EP1, EP3 and EP4 receptors; Omidenepag is the active form of Omidenepag Isopropyl (OMDI).

Olodaterol is a novel, long-acting beta2-adrenergic agonist (LABA) that exerts its pharmacological effect by binding and activating beta2-adrenergic receptors located primarily in the lungs.

Olanzapine(LY170053) is a high affinity for 5-HT2 serotonin and D2 dopamine receptor antagonist.

NIBR 189 is a potent and selective EBI2 (GPR183) receptor antagonist (IC50 values are 11 and 15 nM for human and mouse EBI2 receptors respectively).

NE100 hydrochloride is a potent and selective σ1 receptor antagonist (Ki = 0.86 nM) that displays > 55-fold selectivity over σ2 receptors and > 6000-fold selectivity over D1,

MSX-122 is a n orally bioavailable inhibitor of CXCR4 with potential antineoplastic and antiviral activities.

MRE-269 is an active metabolite of selexipag, and acts as a selective IP receptor agonist.

Montelukast belongs to a group of medications known as leukotriene receptor antagonists.

ML-224 (ANTAG3) is a selective TSH receptor antagonist inhibits stimulation of thyroid function in female mice.

MK-1064 is a selective orexin 2 receptor antagonist (2-SORA) for the research of insomnia.