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Methylnaltrexone

CHEMBL1186579 Phase 4 ได้รับการอนุมัติ Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
356.4 g/mol
LogP
1.6
Phase
4

A peripherally acting opioid antagonist used to relieve opioid-induced constipation in patients with chronic non-cancer pain or advanced illness. It blocks opioid receptors in the gut without affecting pain control.

น้ำหนักโมเลกุล

356.4000 g/mol

LogP

1.60

TPSA

66.80 Ų

Lipinski RO5

ผ่าน

ด้านการรักษา

Ovarian Cancer Pancreatic Cancer Bladder Cancer Thyroid Cancer Non-Small Cell Lung Cancer Systemic Lupus Erythematosus Breast Cancer Prostate Cancer Colorectal Cancer

กลไกการออกฤทธิ์

Binds to mu (μ), kappa (κ), and/or delta (δ) opioid receptors in the central and peripheral nervous system, mimicking endogenous endorphins. Activation of these G-protein-coupled receptors inhibits pain signal transmission and modulates the emotional response to pain.

Pharmacokinetics (PK)

Pharmacodynamics (PD)

กลไก

Binds to mu (μ), kappa (κ), and/or delta (δ) opioid receptors in the central and peripheral nervous system, mimicking endogenous endorphins. Activation of these G-protein-coupled receptors inhibits pain signal transmission …

โครงสร้าง 2 มิติ

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
Embed this structure

                        

                        

                            
                            
                        

                    

                

                

                
                

                    
SMILES

                    
C[N+]1(CC2CC2)CC[C@]23c4c5ccc(O)c4O[C@H]2C(=O)CC[C@@]3(O)[C@H]1C5

                

                

                
                

                    
InChI

                    
InChI=1S/C21H25NO4/c1-22(11-12-2-3-12)9-8-20-17-13-4-5-14(23)18(17)26-19(20)15(24)6-7-21(20,25)16(22)10-13/h4-5,12,16,19,25H,2-3,6-11H2,1H3/p+1/t16-,19+,20+,21-,22?/m1/s1

                

                

                

                    
                    

                        
Molecular Formula

                        
C21H26NO4+

                    

                    
                    

                        
HBD / HBA

                        
2 / 4

                    

                    
                    

                        
พันธะที่หมุนได้

                        
2

                    

                    
                    
                    

                        
อะตอมหนัก

                        
26

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
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

                

                    
                    

                        
                        

                            
A peripherally acting opioid antagonist used to relieve opioid-induced constipation in patients with chronic non-cancer pain or advanced illness. It blocks opioid receptors in the gut without affecting pain control.

                        

                    

                    

                    

                    
                    

                        
                        

                            
Binds to mu (μ), kappa (κ), and/or delta (δ) opioid receptors in the central and peripheral nervous system, mimicking endogenous endorphins. Activation of these G-protein-coupled receptors inhibits pain signal transmission and modulates the emotional response to pain.

                        

                    

                    

                    

                    

                        
                        

                            
Yes, Methylnaltrexone 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).
                CHEMBL1186579.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 5361918.
                Chemical information database.
            
        
    • 
        
        
        
        
    

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




        


        
        
    


    



    
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.