A comparative crossover study of two long-acting bronchodilator preparations

Area of Science:

• Pulmonology
• Pharmacology

Background:

• Reversible airways obstruction requires effective bronchodilator therapy.
• Long-acting bronchodilators are crucial for managing chronic respiratory conditions.

Purpose of the Study:

• To compare the bronchodilator effectiveness of long-acting aminophylline and salbutamol tablets.
• To assess patient-reported relief duration for both medications.

Main Methods:

• A comparative crossover study involving 18 patients with reversible airways obstruction.
• Patients received either aminophylline or salbutamol tablets for 4 weeks, then switched to the alternative.
• Peak expiratory flow rates (PEF) were measured weekly.

Main Results:

• Aminophylline tablets demonstrated a highly significant improvement in PEF compared to salbutamol tablets (p < 0.002).
• Patients reported longer-lasting symptom relief with the aminophylline preparation.

Conclusions:

• Long-acting aminophylline tablets are more effective in improving PEF than salbutamol tablets for reversible airways obstruction.
• Aminophylline offers superior duration of relief, enhancing patient quality of life.