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Cetirizine Hydrochloride

CHEMBL1607273 Phase 4 ได้รับการอนุมัติ Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
461.8 g/mol
LogP
—
Phase
4

The hydrochloride salt of cetirizine is the standard clinical formulation of this second-generation antihistamine, used for once-daily management of seasonal and perennial allergic rhinitis and chronic idiopathic urticaria. It is well absorbed orally and primarily eliminated unchanged by the kidneys. Dose reduction is recommended in patients with renal impairment.

น้ำหนักโมเลกุล

461.8000 g/mol

TPSA

53.00 Ų

ด้านการรักษา

Ovarian Cancer Pancreatic Cancer Bladder Cancer Thyroid Cancer Non-Small Cell Lung Cancer Asthma Migraine Multiple Sclerosis Oncology Type 2 Diabetes Breast Cancer Atopic Dermatitis Prostate Cancer Colorectal Cancer

กลไกการออกฤทธิ์

Competitively blocks histamine H1 receptors on effector cells, preventing histamine-mediated vasodilation, increased vascular permeability, bronchoconstriction, and pruritus. First-generation agents also cross the blood-brain barrier, causing sedation.

Pharmacokinetics (PK)

Pharmacodynamics (PD)

กลไก

Competitively blocks histamine H1 receptors on effector cells, preventing histamine-mediated vasodilation, increased vascular permeability, bronchoconstriction, and pruritus. First-generation agents also cross the blood-brain barrier, causing sedation.

โครงสร้าง 2 มิติ

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
Embed this structure

                        

                        

                            
                            
                        

                    

                

                

                
                

                    
SMILES

                    
Cl.Cl.O=C(O)COCCN1CCN(C(c2ccccc2)c2ccc(Cl)cc2)CC1

                

                

                
                

                    
InChI

                    
InChI=1S/C21H25ClN2O3.2ClH/c22-19-8-6-18(7-9-19)21(17-4-2-1-3-5-17)24-12-10-23(11-13-24)14-15-27-16-20(25)26;;/h1-9,21H,10-16H2,(H,25,26);2*1H

                

                

                

                    
                    

                        
Molecular Formula

                        
C21H27Cl3N2O3

                    

                    
                    

                        
HBD / HBA

                        
3 / 5

                    

                    
                    

                        
พันธะที่หมุนได้

                        
8

                    

                    
                    
                    

                        
อะตอมหนัก

                        
29

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
No targets recorded

    
    
Target interaction data is not yet available for this drug.

    



                
            


            
            

                
                


    
    
        
    
    
    
No interactions recorded

    
    
Drug interaction data is not yet available for this compound.

    



                
            


            
            

                
                


    
    
        
    
    
    
No side effects recorded

    
    
Side effect data is not yet available for this drug.

    



                
            


            
            
            

                
คำถามที่พบบ่อย

                

                    
                    

                        
                        

                            
The hydrochloride salt of cetirizine is the standard clinical formulation of this second-generation antihistamine, used for once-daily management of seasonal and perennial allergic rhinitis and chronic idiopathic urticaria. It is well absorbed orally and primarily eliminated unchanged by the kidneys. Dose reduction is recommended in patients with renal impairment.

                        

                    

                    

                    

                    
                    

                        
                        

                            
Competitively blocks histamine H1 receptors on effector cells, preventing histamine-mediated vasodilation, increased vascular permeability, bronchoconstriction, and pruritus. First-generation agents also cross the blood-brain barrier, causing sedation.

                        

                    

                    

                    

                    

                        
                        

                            
Yes, Cetirizine Hydrochloride is an approved drug. It has reached clinical phase 4. It is classified as a Small molecule.

                        

                    

                

            

            

            
            

            
            

            
            
{# References & Data Sources section for drug detail pages.
   Renders standard pharmacological database links plus the drug's data_sources field. #}


    
References & Data Sources

    
    
        
        
  • 
            
            
                ChEMBL — European Bioinformatics Institute (EBI).
                CHEMBL1607273.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 55182.
                Chemical information database.
            
        
    • 
        
        
        
        
    

    
Data aggregated from publicly available pharmacological databases. Last updated 2026-03-04.




        


        
        
    


    



    
ข้อจำกัดความรับผิดชอบทางการแพทย์

    

        This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.
    

    

        Data sources:
        ChEMBL,
        PubChem,
        DailyMed.