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Chlorpheniramine Maleate

CHEMBL1659 Phase 4 Đã phê duyệt Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
390.9 g/mol
LogP
—
Phase
4

The maleate salt form of chlorpheniramine is the most commonly used preparation of this first-generation antihistamine, found in numerous oral cold and allergy medications. It relieves sneezing, runny nose, and itching but causes sedation in many patients. Caution is needed in elderly patients due to anticholinergic side effects including urinary retention and confusion.

Khối lượng phân tử

390,9000 g/mol

TPSA

90,70 Ų

Lĩnh vực điều trị

Respiratory Disease Pain Management Rheumatoid Arthritis Gastroesophageal Reflux Disease Multiple Sclerosis Atopic Dermatitis Chronic Pain

Cơ chế tác dụng

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)

Cơ chế

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.

Cấu trúc 2D

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
Embed this structure

                        

                        

                            
                            
                        

                    

                

                

                
                

                    
SMILES

                    
CN(C)CCC(c1ccc(Cl)cc1)c1ccccn1.O=C(O)/C=C\C(=O)O

                

                

                
                

                    
InChI

                    
InChI=1S/C16H19ClN2.C4H4O4/c1-19(2)12-10-15(16-5-3-4-11-18-16)13-6-8-14(17)9-7-13;5-3(6)1-2-4(7)8/h3-9,11,15H,10,12H2,1-2H3;1-2H,(H,5,6)(H,7,8)/b;2-1-

                

                

                

                    
                    

                        
Molecular Formula

                        
C20H23ClN2O4

                    

                    
                    

                        
HBD / HBA

                        
2 / 6

                    

                    
                    

                        
Liên kết có thể quay

                        
7

                    

                    
                    
                    

                        
Nguyên tử nặng

                        
27

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
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.

    



                
            


            
            
            

                
Câu hỏi thường gặp

                

                    
                    

                        
                        

                            
The maleate salt form of chlorpheniramine is the most commonly used preparation of this first-generation antihistamine, found in numerous oral cold and allergy medications. It relieves sneezing, runny nose, and itching but causes sedation in many patients. Caution is needed in elderly patients due to anticholinergic side effects including urinary retention and confusion.

                        

                    

                    

                    

                    
                    

                        
                        

                            
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, Chlorpheniramine Maleate 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).
                CHEMBL1659.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 5281068.
                Chemical information database.
            
        
    • 
        
        
        
        
    

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




        


        
        
    


    



    
Tuyên bố miễn trách y tế

    

        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.