Theo Asthalin 2mg+100 mg tablets have been the most preferred oral dosage form for patients with bronchial asthma, chronic bronchitis, and chronic obstructive pulmonary disease because of effectiveness and ease of administration. The oral prolonged discharge dosage form has been prepared for those medications that are comfortably absorbed from the gastrointestinal tract (GIT) and eliminated quickly from the bloodstream. 

Theophylline has long been used for its bronchodilator properties in managing asthma and chronic obstructive pulmonary disease. The combination of Salbutamol and Theophylline appeared to be superior due to synergistic effects with no added side effects.

COPD is associated with intermittent exacerbations characterized by acute deterioration in symptoms, lung function and quality of life. Bronchodilators remain central to the management of COPD. They are extremely effective in preventing and relieving symptoms by regular use. Combining bronchodilators may improve the rate of efficacy and decrease side effects when compared with a single bronchodilator.