Known targets — ChEMBL curated mechanism
The experimentally established mechanism targets of Cetirizine. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.
Predicted protein targets (top 20)
| gene | UniProt | supporting neighbours | confidence | |
|---|---|---|---|---|
| ▸ | HRH1 known ✓ | P35367 | 4/20 | 1.00 |
| ▸ | DRD3 | P35462 | 4/20 | 0.98 |
| ▸ | USP2 | O75604 | 3/20 | 0.98 |
| ▸ | TDP1 | Q9NUW8 | 3/20 | 0.98 |
| ▸ | HRH2 | P25021 | 2/20 | 0.98 |
| ▸ | HTR2A | P28223 | 2/20 | 0.98 |
| ▸ | HTR2B | P41595 | 2/20 | 0.98 |
| ▸ | KCNH2 | Q12809 | 2/20 | 0.98 |
| ▸ | SLC6A2 | P23975 | 1/20 | 0.98 |
| ▸ | SLC6A4 | P31645 | 1/20 | 0.98 |
| ▸ | SLC6A3 | Q01959 | 1/20 | 0.98 |
| ▸ | TEK | Q02763 | 1/20 | 0.98 |
| ▸ | DRD2 | P14416 | 3/20 | 0.73 |
| ▸ | CYP2D6 | P10635 | 2/20 | 0.73 |
| ▸ | ABCB11 | O95342 | 1/20 | 0.73 |
| ▸ | CHRM2 | P08172 | 1/20 | 0.73 |
| ▸ | ADRA2A | P08913 | 1/20 | 0.73 |
| ▸ | ADRA2B | P18089 | 1/20 | 0.73 |
| ▸ | ADRA2C | P18825 | 1/20 | 0.73 |
| ▸ | DRD4 | P21917 | 1/20 | 0.73 |
Click a target to see other patent compounds predicted against it — the reverse direction, in place.
Similar compounds — the chemically nearest patent molecules
Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| Levocetirizine SCHEMBL144375 | 1.00 | HRH1 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Cetirizine SCHEMBL41108 | 1.00 | HRH1 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Cetirizine SCHEMBL17800801 | 1.00 | HRH1 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Levocetirizine SCHEMBL2255374 | 1.00 | HRH1 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Cetirizine SCHEMBL5520719 | 1.00 | HRH1 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Levocetirizine SCHEMBL4914 | 0.99 | DRD3 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Levocetirizine SCHEMBL5935097 | 0.99 | DRD3 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Cetirizine SCHEMBL13724610 | 0.99 | DRD3 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Cetirizine SCHEMBL4176 | 0.99 | DRD3 (1.00) | HRH1DRD3USP2TDP1HRH2 | |
| Cetirizine SCHEMBL2455487 | 0.99 | DRD3 (1.00) | HRH1DRD3USP2TDP1HRH2 |
Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.
Patent provenance — the patents this molecule appears in, and who filed them
Appears in 14909 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-20260148035-A1 | COMPUTER OPERATED METHOD OF PROVIDING GUIDANCE TO A USER | INNOVATE PRODUCT DESIGN LTD (GB) | 2026-05-28 | — | — | US | claimed |
| CN-122086041-A | Unmanned aerial vehicle collaborative operation method for mountain highway exploration | — | 2026-05-26 | — | — | CN | claimed |
| CN-116776057-B | Method for converting bent pipe data format YBC to XYZ | 中国科学院沈阳自动化研究所 | 2026-05-19 | — | — | CN | claimed |
| US-20260115184-A1 | DOSING REGIMEN FOR INJECTABLE CETIRIZINE | JDP THERAPEUTICS LLC (US) | 2026-04-30 | — | — | US | claimed |
| US-20260090584-A1 | SYSTEMS AND METHODS FOR ESTIMATING AEROSOLIZATION EMISSION | SCIENTIFIC HORIZONS CONSULTING LLC (US) | 2026-04-02 | — | — | US | claimed |
| EP-4654949-A1 | USE OF VITAMIN E TPGS AS A TASTE MASKING AGENT FOR BITTER DRUGS | Hyloris Developments SA (BE) | 2025-12-03 | — | — | EP | claimed |
| EP-4630401-A2 | CARBONIC ANHYDRASE ENZYME INHIBITORS AND METHODS OF USE THEREOF | Rutgers, the State University of New Jersey (US) | 2025-10-15 | — | — | EP | claimed |
| US-12390416-B2 | Chewable pharmaceutical dosage forms | USpharma Ltd (US) | 2025-08-19 | — | — | US | claimed |
| EP-4590371-A2 | SYSTEMS AND METHODS FOR ESTIMATING AEROSOLIZATION EMISSION | Scientific Horizons consulting LLC (US) | 2025-07-30 | — | — | EP | claimed |
| EP-4461908-B1 | SELF ADJUSTING KEY DECODER | BOVAL 7 OOD (BG) | 2025-06-25 | — | — | EP | claimed |
| WO-2002047689-A2 | USE OF CETIRIZINE OR EFLETIRIZINE FOR PREVENTING URTICARIA | UCB, S.A. (BE) | 2002-06-20 | — | — | WO | claimed |
| WO-2002038107-A2 | STAT MODULATORS | TULARIK INC. (US) | 2002-05-16 | — | — | WO | claimed |
| WO-2001098291-A2 | 1,3-BIS-(SUBSTITUTED-PHENYL)-2-PROPEN-1-ONES AND THEIR USE TO TREAT VCAM-1 MEDIATED DISORDERS | ATHEROGENICS, INC. (US) | 2001-12-27 | — | — | WO | claimed |
| US-20010051184-A1 | METHOD FOR USING SOLUBLE CURCUMIN TO INHIBIT PHOSPHORYLASE KINASE IN INFLAMMATORY DISEASES | NEUVOLA II, LLC | 2001-12-13 | — | — | US | claimed |
| WO-2001083517-A1 | STAT4 AND STAT6 BINDING DIPEPTIDE DERIVATIVES | TULARIK INC. (US) | 2001-11-08 | — | — | WO | claimed |
| US-6258814-B1 | INTRANASAL ADMINISTERING AS SEDATIVES | SCHERING CORPORATION | 2001-07-10 | — | — | US | claimed |
| EP-1109557-A2 | A METHOD FOR PREVENTING THE ONSET OF ASTHMA | UCB S.A. (BE) | 2001-06-27 | — | — | EP | claimed |
| WO-2000070949-A1 | METHOD FOR USING SOLUBLE CURCUMIN TO INHIBIT PHOSPHORYLASE KINASE IN INFLAMMATORY DISEASES | HENG MADALENE C Y (US) | 2000-11-30 | — | — | WO | claimed |
| WO-2000010544-A2 | A METHOD FOR PREVENTING THE ONSET OF ASTHMA | UCB S.A. (BE) | 2000-03-02 | — | — | WO | claimed |
| US-5993833-A | Histamine antagonist, an interleukin-1 antagonist and/or a TNF alpha antagonist in a cosmetic, pharmaceutical or dermatological composition | SOCIETE L'OREAL S.A. (FR) | 1999-11-30 | — | — | US | claimed |