| 1 | Conclusion: Theophylline transdermal patch has good permeation in vitro. | |
| 2 | The experts, Yunwu Cha-rich theophylline, tea tannins, vitamins. | |
| 3 | To establish a method for determination of formic acid residue in theophylline. | |
| 4 | Theobromine, like caffeine, and also like the asthma drug theophylline, belong to the chemical group known as xanthine alkaloids. | |
| 5 | Conclusion Theophylline can relieve airway inflammation, improve lung function in stable COPD patients. |