| 1 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Aminophylline 
                
                    Aminophylline
                
             💬
 | 
                
                    Aminophylline
                
             | [1]  63 63 💬
 | 
| 2 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Theophylline 
                
                    Theophylline
                
             💬
 | 
                
                    Theophylline
                
             | [2]  236 236, 299 💬
 | 
| 3 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Caffeine 
                
                    Caffeine
                
             💬
 | 
                
                    Caffeine
                
             | [8]  2 2, 6, 21, 46, 78, 96, 97, 265 💬
 | 
| 4 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Caffeine hydrate 
                
                    Caffeine hydrate
                
             💬
 | 
                
                    Caffeine
                
             | [8]  2 2, 6, 21, 46, 78, 96, 97, 265 💬
 | 
| 5 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Theophylline 
                
                    Theophylline
                
             💬
 | 
                
                    Theophylline
                
             | [2]  236 236, 299 💬
 | 
| 6 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Bucladesine 
                
                    Bucladesine
                
             💬
 | 
                
                    Bucladesine
                
             | [1]  246 246 💬
 | 
| 7 | 
                
                    PDE1B
                
             💬
 | [7]  Purine metabolism Purine metabolism, Metabolic pathways, Calcium signaling pathway, Olfactory transduction, Taste transduction, Renin secretion, Morphine addiction | Flavoxate 
                
                    Flavoxate
                
             💬
 | 
                
                    Flavoxate
                
             | [1]  226 226 💬
 |