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Cyclobarbital

CHEMBL268164 Phase 4 Approved Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
236.3 g/mol
LogP
1.8
Phase
4

A barbiturate sedative used historically to treat insomnia and anxiety. It works by enhancing the effects of a calming brain chemical called GABA, producing sedation.

Molecular Weight

236.2700 g/mol

LogP

1.80

TPSA

75.30 Ų

Lipinski RO5

Pass

Mechanism of Action

Selectively blocks angiotensin II type 1 (AT1) receptors, preventing the vasoconstrictive and aldosterone-secreting effects of angiotensin II. This results in vasodilation, reduced sodium retention, and decreased blood pressure.

Pharmacokinetics (PK)

Pharmacodynamics (PD)

Mechanism

Selectively blocks angiotensin II type 1 (AT1) receptors, preventing the vasoconstrictive and aldosterone-secreting effects of angiotensin II. This results in vasodilation, reduced sodium retention, and decreased blood pressure.

2D Structure

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
Embed this structure

                        

                        

                            
                            
                        

                    

                

                

                
                

                    
SMILES

                    
CCC1(C2=CCCCC2)C(=O)NC(=O)NC1=O

                

                

                
                

                    
InChI

                    
InChI=1S/C12H16N2O3/c1-2-12(8-6-4-3-5-7-8)9(15)13-11(17)14-10(12)16/h6H,2-5,7H2,1H3,(H2,13,14,15,16,17)

                

                

                

                    
                    

                        
Molecular Formula

                        
C12H16N2O3

                    

                    
                    

                        
HBD / HBA

                        
2 / 3

                    

                    
                    

                        
Rotatable Bonds

                        
2

                    

                    
                    
                    

                        
Heavy Atoms

                        
17

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
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

                

                    
                    

                        
                        

                            
A barbiturate sedative used historically to treat insomnia and anxiety. It works by enhancing the effects of a calming brain chemical called GABA, producing sedation.

                        

                    

                    

                    

                    
                    

                        
                        

                            
Selectively blocks angiotensin II type 1 (AT1) receptors, preventing the vasoconstrictive and aldosterone-secreting effects of angiotensin II. This results in vasodilation, reduced sodium retention, and decreased blood pressure.

                        

                    

                    

                    

                    

                        
                        

                            
Yes, Cyclobarbital 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).
                CHEMBL268164.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 5838.
                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.