diphenhydramine [Ligand Id: 1224] activity data from GtoPdb and ChEMBL

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ChEMBL ligand: CHEMBL657 (Difenhidramina, Diphenhdyra, Diphenhydramine, Restamin)
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  • H1 receptor/Histamine H1 receptor in Human [ChEMBL: CHEMBL231] [GtoPdb: 262] [UniProtKB: P35367]
  • Histamine H1 receptor in Guinea pig [ChEMBL: CHEMBL3943] [UniProtKB: P31389]
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  • H4 receptor/Histamine H4 receptor in Human [ChEMBL: CHEMBL3759] [GtoPdb: 265] [UniProtKB: Q9H3N8]
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  • M1 receptor/Muscarinic acetylcholine receptor M1 in Human [ChEMBL: CHEMBL216] [GtoPdb: 13] [UniProtKB: P11229]
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  • M2 receptor/Muscarinic acetylcholine receptor M2 in Human [ChEMBL: CHEMBL211] [GtoPdb: 14] [UniProtKB: P08172]
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  • M3 receptor/Muscarinic acetylcholine receptor M3 in Human [ChEMBL: CHEMBL245] [GtoPdb: 15] [UniProtKB: P20309]
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  • M4 receptor/Muscarinic acetylcholine receptor M4 in Human [ChEMBL: CHEMBL1821] [GtoPdb: 16] [UniProtKB: P08173]
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  • M5 receptor/Muscarinic acetylcholine receptor M5 in Human [ChEMBL: CHEMBL2035] [GtoPdb: 17] [UniProtKB: P08912]
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  • NET/Norepinephrine transporter in Human [ChEMBL: CHEMBL222] [GtoPdb: 926] [UniProtKB: P23975]
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  • 5-HT2A receptor/Serotonin 2a (5-HT2a) receptor in Human [ChEMBL: CHEMBL224] [GtoPdb: 6] [UniProtKB: P28223]
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  • 5-HT2B receptor/Serotonin 2b (5-HT2b) receptor in Human [ChEMBL: CHEMBL1833] [GtoPdb: 7] [UniProtKB: P41595]
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  • 5-HT2C receptor/Serotonin 2c (5-HT2c) receptor in Human [ChEMBL: CHEMBL225] [GtoPdb: 8] [UniProtKB: P28335]
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  • Nav1.5/Sodium channel protein type V alpha subunit in Human [ChEMBL: CHEMBL1980] [GtoPdb: 582] [UniProtKB: Q14524]
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  • Organic cation transporter 1/Solute carrier family 22 member 1 in Rat [ChEMBL: CHEMBL2073670] [GtoPdb: 1019] [UniProtKB: Q63089]
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  • Organic cation transporter 2/Solute carrier family 22 member 2 in Rat [ChEMBL: CHEMBL1770032] [GtoPdb: 1020] [UniProtKB: Q9R0W2]
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DB Assay description Assay Type Standard value Standard parameter Original value Original units Original parameter Reference
Kv11.1/HERG in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL240] [GtoPdb: 572] [UniProtKB: Q12809]
ChEMBL DRUGMATRIX: Potassium Channel HERG radioligand binding (ligand: [3H] Astemizole) B 4.58 pKi 26101.3 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Potassium Channel HERG radioligand binding (ligand: [3H] Astemizole) B 4.5 pIC50 31859 nM IC50 DrugMatrix in vitro pharmacology data
ChEMBL Inhibition of human Potassium channel HERG expressed in mammalian cells B 4.57 pIC50 26915.35 nM IC50 Bioorg Med Chem Lett (2003) 13: 2773-2775 [PMID:12873512]
ChEMBL Inhibitory concentration against potassium channel HERG B 4.57 pIC50 26915.35 nM IC50 Bioorg Med Chem Lett (2005) 15: 2886-2890 [PMID:15911273]
ChEMBL Inhibition of human ERG expressed in CHO cells by whole cell patch clamp technique B 4.57 pIC50 26915.35 nM IC50 Bioorg Med Chem (2008) 16: 6252-6260 [PMID:18448342]
ChEMBL Inhibition of hERG K channel F 5.28 pIC50 5200 nM IC50 Cardiovasc Res (2011) 91: 53-61 [PMID:21300721]
ChEMBL Inhibition of human ERG B 5.59 pIC50 2570.4 nM IC50 Eur J Med Chem (2011) 46: 618-630 [PMID:21185626]
H1 receptor/Histamine H1 receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL231] [GtoPdb: 262] [UniProtKB: P35367]
ChEMBL DRUGMATRIX: Histamine H1, Central radioligand binding (ligand: [3H] Pyrilamine) B 7.7 pKi 20 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL Displacement of [3H]mepyramine from human H1R expressed in Sf9 cells co-expressing RGS4 after 90 mins by liquid scintillation counting B 7.83 pKi 14.79 nM Ki Bioorg Med Chem Lett (2011) 21: 6274-6280 [PMID:21944853]
GtoPdb - - 7.9 pKi - - - J Pharmacol Exp Ther (2002) 302: 328-36 [PMID:12065734]
ChEMBL Histamine H1 Receptors Binding Assay: Affinities of the test compounds for peripheral human histamine H-1-receptors were assessed using receptor-binding assays. The specific binding of the radioactive ligand to the receptor was defined as the difference between total binding and nonspecific binding, determined in the presence of excess unlabeled ligand. [3H]-histamine was used as the ligand in this study and the affinity values were determined according to the Cheng-Prusoff equation. B 4.08 pIC50 84000 nM IC50 US-9138431-B2. Methods of treatment of histamine H-4 receptor-related pruritus (2015)
ChEMBL Binding Assay: The specific binding of the radioactive ligand to the receptor was defined as the difference between total binding and nonspecific binding, determined in the presence of excess unlabeled ligand. B 4.08 pIC50 84000 nM IC50 US-9333199-B2. Methods of treatment of histamine H-4 receptor-related pruritus associated with nerve disorders (2016)
ChEMBL DRUGMATRIX: Histamine H1, Central radioligand binding (ligand: [3H] Pyrilamine) B 6.77 pIC50 171 nM IC50 DrugMatrix in vitro pharmacology data
Histamine H1 receptor in Guinea pig (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL3943] [UniProtKB: P31389]
ChEMBL Antagonist activity at H1R in guinea pig ileum assessed as inhibition of histamine-induced muscle contraction after 15 mins F 7.93 pKd 11.75 nM Kd Bioorg Med Chem Lett (2011) 21: 6274-6280 [PMID:21944853]
ChEMBL Antihistaminic activity against Histamine H1 receptor was measured on isolated terminal part of guinea pig ileum B 9 pIC50 1 nM IC50 J Med Chem (1990) 33: 2970-2976 [PMID:1977909]
H4 receptor/Histamine H4 receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL3759] [GtoPdb: 265] [UniProtKB: Q9H3N8]
ChEMBL Displacement of [3H]histamine from human H4R expressed in Sf9 cells co-expressing RGS19, Galphai2 and Gbeta1gamma2 after 60 mins by liquid scintillation counting B 4.37 pKi 42657.95 nM Ki Bioorg Med Chem Lett (2011) 21: 6274-6280 [PMID:21944853]
ChEMBL Binding Assay: The specific binding of the radioactive ligand to the receptor was defined as the difference between total binding and nonspecific binding, determined in the presence of excess unlabeled ligand. [3H]-histamine was used as the ligand in this study and the affinity values were determined according to the Cheng-Prusoff equation. B 4.96 pKi 11000 nM Ki US-9333199-B2. Methods of treatment of histamine H-4 receptor-related pruritus associated with nerve disorders (2016)
ChEMBL Histamine H-4 Receptor Binding Assay: Histamine H-4 Receptor Binding Assay B 4.96 pIC50 11000 nM IC50 US-9138431-B2. Methods of treatment of histamine H-4 receptor-related pruritus (2015)
M1 receptor/Muscarinic acetylcholine receptor M1 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL216] [GtoPdb: 13] [UniProtKB: P11229]
ChEMBL DRUGMATRIX: Muscarinic M1 radioligand binding (ligand: [3H] N-Methylscopolamine) B 7.08 pKi 83 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Muscarinic M1 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.46 pIC50 346 nM IC50 DrugMatrix in vitro pharmacology data
M2 receptor/Muscarinic acetylcholine receptor M2 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL211] [GtoPdb: 14] [UniProtKB: P08172]
ChEMBL DRUGMATRIX: Muscarinic M2 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.43 pKi 373 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Muscarinic M2 radioligand binding (ligand: [3H] N-Methylscopolamine) B 5.98 pIC50 1050 nM IC50 DrugMatrix in vitro pharmacology data
M3 receptor/Muscarinic acetylcholine receptor M3 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL245] [GtoPdb: 15] [UniProtKB: P20309]
ChEMBL DRUGMATRIX: Muscarinic M3 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.86 pKi 137 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Muscarinic M3 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.19 pIC50 647 nM IC50 DrugMatrix in vitro pharmacology data
M4 receptor/Muscarinic acetylcholine receptor M4 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL1821] [GtoPdb: 16] [UniProtKB: P08173]
ChEMBL DRUGMATRIX: Muscarinic M4 radioligand binding (ligand: [3H] N-Methylscopolamine) B 7.28 pKi 52 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Muscarinic M4 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.43 pIC50 372 nM IC50 DrugMatrix in vitro pharmacology data
M5 receptor/Muscarinic acetylcholine receptor M5 in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL2035] [GtoPdb: 17] [UniProtKB: P08912]
ChEMBL DRUGMATRIX: Muscarinic M5 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.94 pKi 116 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Muscarinic M5 radioligand binding (ligand: [3H] N-Methylscopolamine) B 6.79 pIC50 162 nM IC50 DrugMatrix in vitro pharmacology data
NET/Norepinephrine transporter in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL222] [GtoPdb: 926] [UniProtKB: P23975]
ChEMBL DRUGMATRIX: Norepinephrine Transporter radioligand binding (ligand: [125I] RTI-55) B 5.45 pKi 3513 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Norepinephrine Transporter radioligand binding (ligand: [125I] RTI-55) B 5.45 pIC50 3542 nM IC50 DrugMatrix in vitro pharmacology data
5-HT2A receptor/Serotonin 2a (5-HT2a) receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL224] [GtoPdb: 6] [UniProtKB: P28223]
ChEMBL DRUGMATRIX: Serotonin (5-Hydroxytryptamine) 5-HT2A radioligand binding (ligand: [3H] Ketanserin) B 6.43 pKi 370 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Serotonin (5-Hydroxytryptamine) 5-HT2A radioligand binding (ligand: [3H] Ketanserin) B 5.89 pIC50 1295 nM IC50 DrugMatrix in vitro pharmacology data
5-HT2B receptor/Serotonin 2b (5-HT2b) receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL1833] [GtoPdb: 7] [UniProtKB: P41595]
ChEMBL DRUGMATRIX: Serotonin (5-Hydroxytryptamine) 5-HT2B radioligand binding (ligand: [3H] Lysergic acid diethylamide) B 6.15 pKi 711 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Serotonin (5-Hydroxytryptamine) 5-HT2B radioligand binding (ligand: [3H] Lysergic acid diethylamide) B 5.95 pIC50 1118 nM IC50 DrugMatrix in vitro pharmacology data
5-HT2C receptor/Serotonin 2c (5-HT2c) receptor in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL225] [GtoPdb: 8] [UniProtKB: P28335]
ChEMBL DRUGMATRIX: Serotonin (5-Hydroxytryptamine) 5-HT2C radioligand binding (ligand: [3H] Mesulergine) B 6.29 pKi 513 nM Ki DrugMatrix in vitro pharmacology data
ChEMBL DRUGMATRIX: Serotonin (5-Hydroxytryptamine) 5-HT2C radioligand binding (ligand: [3H] Mesulergine) B 6.01 pIC50 980 nM IC50 DrugMatrix in vitro pharmacology data
Nav1.5/Sodium channel protein type V alpha subunit in Human (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL1980] [GtoPdb: 582] [UniProtKB: Q14524]
ChEMBL Inhibition of sodium current measured using whole-cell patch clamp experiments in HEK-293 cells stably transfected with hNaV1.5 cDNA F 4.39 pIC50 41000 nM IC50 Cardiovasc Res (2011) 91: 53-61 [PMID:21300721]
Organic cation transporter 1/Solute carrier family 22 member 1 in Rat (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL2073670] [GtoPdb: 1019] [UniProtKB: Q63089]
ChEMBL TP_TRANSPORTER: inhibition of TEA uptake (TEA: 50 uM) in OCT1-expressing MDCK cells F 4.62 pIC50 24000 nM IC50 Pharm Res (2001) 18: 1528-1534 [PMID:11758759]
Organic cation transporter 2/Solute carrier family 22 member 2 in Rat (target type: SINGLE PROTEIN) [ChEMBL: CHEMBL1770032] [GtoPdb: 1020] [UniProtKB: Q9R0W2]
ChEMBL TP_TRANSPORTER: inhibition of TEA uptake (TEA: 50 uM) in OCT2-expressing MDCK cells F 4.49 pIC50 32000 nM IC50 Pharm Res (2001) 18: 1528-1534 [PMID:11758759]

ChEMBL data shown on this page come from version 34:

Zdrazil B, Felix E, Hunter F, Manners EJ, Blackshaw J, Corbett S, de Veij M, Ioannidis H, Lopez DM, Mosquera JF, Magarinos MP, Bosc N, Arcila R, Kizilören T, Gaulton A, Bento AP, Adasme MF, Monecke P, Landrum GA, Leach AR. (2024). The ChEMBL Database in 2023: a drug discovery platform spanning multiple bioactivity data types and time periods. Nucleic Acids Res., 52(D1). DOI: 10.1093/nar/gkad1004. [EPMCID:10767899] [PMID:37933841]
Davies M, Nowotka M, Papadatos G, Dedman N, Gaulton A, Atkinson F, Bellis L, Overington JP. (2015) 'ChEMBL web services: streamlining access to drug discovery data and utilities.' Nucleic Acids Res., 43(W1). DOI: 10.1093/nar/gkv352. [EPMCID:25883136]