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Clemastine

CHEMBL1626 Phase 4 معتمد Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
343.9 g/mol
LogP
5.0
Phase
4

An antihistamine that blocks H1 receptors to relieve allergy symptoms such as itching, hives, and runny nose. It is taken by mouth and may cause drowsiness due to its ability to cross into the brain.

الوزن الجزيئي

343,9000 g/mol

LogP

5,00

TPSA

12,50 Ų

قاعدة ليبينسكي للخمسة

ناجح

المجالات العلاجية

Ovarian Cancer Pancreatic Cancer Bladder Cancer Thyroid Cancer Non-Small Cell Lung Cancer Schizophrenia Multiple Sclerosis Breast Cancer Atopic Dermatitis Prostate Cancer Colorectal Cancer

آلية العمل

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)

الآلية

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.

البنية ثنائية الأبعاد

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
Embed this structure

                        

                        

                            
                            
                        

                    

                

                

                
                

                    
SMILES

                    
CN1CCC[C@@H]1CCO[C@](C)(c1ccccc1)c1ccc(Cl)cc1

                

                

                
                

                    
InChI

                    
InChI=1S/C21H26ClNO/c1-21(17-7-4-3-5-8-17,18-10-12-19(22)13-11-18)24-16-14-20-9-6-15-23(20)2/h3-5,7-8,10-13,20H,6,9,14-16H2,1-2H3/t20-,21-/m1/s1

                

                

                

                    
                    

                        
Molecular Formula

                        
C21H26ClNO

                    

                    
                    

                        
HBD / HBA

                        
- / 2

                    

                    
                    

                        
الروابط القابلة للدوران

                        
6

                    

                    
                    
                    

                        
الذرات الثقيلة

                        
24

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
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.

    



                
            


            
            
            

                
الأسئلة الشائعة

                

                    
                    

                        
                        

                            
An antihistamine that blocks H1 receptors to relieve allergy symptoms such as itching, hives, and runny nose. It is taken by mouth and may cause drowsiness due to its ability to cross into the brain.

                        

                    

                    

                    

                    
                    

                        
                        

                            
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, Clemastine 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).
                CHEMBL1626.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 26987.
                Chemical information database.
            
        
    • 
        
        
        
        
    

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




        


        
        
    


    



    
إخلاء المسؤولية الطبية

    

        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.