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Lemborexant

CHEMBL3545367 Phase 4 Approved Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
410.4 g/mol
LogP
3.2
Phase
4

An orexin receptor antagonist used to treat insomnia in adults and being studied for sleep disturbances in Alzheimer's disease. It works by blocking the wake-promoting orexin signals in the brain to help initiate and maintain sleep.

Molecular Weight

410.4000 g/mol

LogP

3.20

TPSA

77.00 Ų

Lipinski RO5

Pass

Therapeutic Areas

Chronic Pain Epilepsy Insomnia Major Depressive Disorder Pain Management Parkinson's Disease

Mechanism of Action

Competitively binds to its target receptor without activating it, blocking the natural ligand from binding and preventing receptor-mediated signaling.

Pharmacokinetics (PK)

Pharmacodynamics (PD)

Mechanism

Competitively binds to its target receptor without activating it, blocking the natural ligand from binding and preventing receptor-mediated signaling.

2D Structure

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
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SMILES

                    
Cc1ncc(OC[C@@]2(c3cccc(F)c3)C[C@H]2C(=O)Nc2ccc(F)cn2)c(C)n1

                

                

                
                

                    
InChI

                    
InChI=1S/C22H20F2N4O2/c1-13-19(11-25-14(2)27-13)30-12-22(15-4-3-5-16(23)8-15)9-18(22)21(29)28-20-7-6-17(24)10-26-20/h3-8,10-11,18H,9,12H2,1-2H3,(H,26,28,29)/t18-,22+/m0/s1

                

                

                

                    
                    

                        
Molecular Formula

                        
C22H20F2N4O2

                    

                    
                    

                        
HBD / HBA

                        
1 / 7

                    

                    
                    

                        
Rotatable Bonds

                        
6

                    

                    
                    
                    

                        
Heavy Atoms

                        
30

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
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 orexin receptor antagonist used to treat insomnia in adults and being studied for sleep disturbances in Alzheimer's disease. It works by blocking the wake-promoting orexin signals in the brain to help initiate and maintain sleep.

                        

                    

                    

                    

                    
                    

                        
                        

                            
Competitively binds to its target receptor without activating it, blocking the natural ligand from binding and preventing receptor-mediated signaling.

                        

                    

                    

                    

                    

                        
                        

                            
Yes, Lemborexant 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).
                CHEMBL3545367.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 56944144.
                Chemical information database.
            
        
    • 
        
        
        
        
    

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




        


        
        
    


    



    
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.