| 1 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Aminophylline 
                
                    Aminophylline
                
             💬
 | 
                
                    Aminophylline
                
             | [1]  63 63 💬
 | 
| 2 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Theophylline 
                
                    Theophylline
                
             💬
 | 
                
                    Theophylline
                
             | [2]  236 236, 299 💬
 | 
| 3 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Caffeine 
                
                    Caffeine
                
             💬
 | 
                
                    Caffeine
                
             | [8]  2 2, 6, 21, 46, 78, 96, 97, 265 💬
 | 
| 4 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Ibudilast 
                
                    Ibudilast
                
             💬
 | 
                
                    Ibudilast
                
             | [2]  2 2, 13 💬
 | 
| 5 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Caffeine hydrate 
                
                    Caffeine hydrate
                
             💬
 | 
                
                    Caffeine
                
             | [8]  2 2, 6, 21, 46, 78, 96, 97, 265 💬
 | 
| 6 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Rolipram 
                
                    Rolipram
                
             💬
 | 
                
                    Rolipram
                
             | [2]  8 8, 13 💬
 | 
| 7 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Roflumilast 
                
                    Roflumilast
                
             💬
 | 
                
                    Roflumilast
                
             | [4]  84 84, 97, 206, 299 💬
 | 
| 8 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Theophylline 
                
                    Theophylline
                
             💬
 | 
                
                    Theophylline
                
             | [2]  236 236, 299 💬
 | 
| 9 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Bucladesine 
                
                    Bucladesine
                
             💬
 | 
                
                    Bucladesine
                
             | [1]  246 246 💬
 | 
| 10 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Flavoxate 
                
                    Flavoxate
                
             💬
 | 
                
                    Flavoxate
                
             | [1]  226 226 💬
 | 
| 11 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Apremilast 
                
                    Apremilast
                
             💬
 | 
                
                    Apremilast
                
             | [7]  46 46, 50, 56, 97, 107, 162, 271 💬
 | 
| 12 | 
                
                    PDE4D
                
             💬
 | [5]  Purine metabolism Purine metabolism, Metabolic pathways, cAMP signaling pathway, Parathyroid hormone synthesis, secretion and action, Morphine addiction | Zatolmilast 
                
                    Zatolmilast
                
             💬
 | 
                
                    Zatolmilast
                
             | [1]  206 206 💬
 |