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Methixene

CHEMBL1201342 Phase 4 Approved Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
309.5 g/mol
LogP
4.9
Phase
4

An anticholinergic medication used to relieve muscle spasms and rigidity, particularly in the management of Parkinson's disease symptoms. It works by blocking certain nerve signals that cause excessive muscle tension.

Molecular Weight

309.5000 g/mol

LogP

4.90

TPSA

28.50 Ų

Lipinski RO5

Pass

Mechanism of Action

Competitively blocks muscarinic acetylcholine receptors, reducing parasympathetic nervous system activity. Effects include decreased secretions, bronchodilation, and relaxation of smooth muscle.

Pharmacokinetics (PK)

Pharmacodynamics (PD)

Mechanism

Competitively blocks muscarinic acetylcholine receptors, reducing parasympathetic nervous system activity. Effects include decreased secretions, bronchodilation, and relaxation of smooth muscle.

2D Structure

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
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SMILES

                    
CN1CCCC(CC2c3ccccc3Sc3ccccc32)C1

                

                

                
                

                    
InChI

                    
InChI=1S/C20H23NS/c1-21-12-6-7-15(14-21)13-18-16-8-2-4-10-19(16)22-20-11-5-3-9-17(18)20/h2-5,8-11,15,18H,6-7,12-14H2,1H3

                

                

                

                    
                    

                        
Molecular Formula

                        
C20H23NS

                    

                    
                    

                        
HBD / HBA

                        
- / 2

                    

                    
                    

                        
Rotatable Bonds

                        
2

                    

                    
                    
                    

                        
Heavy Atoms

                        
22

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
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.

    



                
            


            
            
            

                
Frequently Asked Questions

                

                    
                    

                        
                        

                            
An anticholinergic medication used to relieve muscle spasms and rigidity, particularly in the management of Parkinson's disease symptoms. It works by blocking certain nerve signals that cause excessive muscle tension.

                        

                    

                    

                    

                    
                    

                        
                        

                            
Competitively blocks muscarinic acetylcholine receptors, reducing parasympathetic nervous system activity. Effects include decreased secretions, bronchodilation, and relaxation of smooth muscle.

                        

                    

                    

                    

                    

                        
                        

                            
Yes, Methixene 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).
                CHEMBL1201342.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 4167.
                Chemical information database.
            
        
    • 
        
        
        
        
    

    
Data aggregated from publicly available pharmacological databases. Last updated 2026-03-28.




        


        
        
    


    



    
Medical Disclaimer

    

        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.