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        Summary 
        
         
          
           | Description | 
           Chemical structure of  Caffeine and the three primary metabolites that it is metabolized into inside the  liver. | 
          
          
           | Date | 
           20 August 2006 | 
          
          
           | Source | 
           Own work, created in  Inkscape | 
          
          
           | Author | 
            Icey | 
          
          
           Permission ( Reusing this file) | 
           
             PD self 
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         Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          I, the copyright holder of this work, release this work into the  public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse 
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