Aminophylline for Injection 250 mg Single-dose Vial 10 mL x 25/Tray (Rx)Aminophylline for Injection 250 mg is a bronchodilator used to treat and manage symptoms of asthma, chronic obstructive pulmonary disease (COPD), and other lung diseases associated with bronchospasm. It works by relaxing the muscles around the airways, improving breathing and airflow in patients experiencing difficulty in breathing. Aminophylline is typically administered intravenously in hospital settings for acute asthma attacks or severe COPD