Deriphyllin Tablet is used for respiratory conditions like asthma and COPD. Know its dosage, benefits, precautions, and possible side effects in detail. Deriphyllin Retard 150 Tablet is a bronchodilator used to treat symptoms of asthma and chronic obstructive pulmonary disease (COPD). It contains the active ingredients theophylline and etofylline, which help relax the muscles in the airways, improving airflow to the lungs. This action helps alleviate symptoms such as coughing, wheezing, and shortness of breath. Common side effects may include nausea, vomiting, headache, restlessness, dizziness, irregular heartbeat, and stomach upset. View ... Deriphyllin Retard 150 Tablet is a combination medicine used to prevent and treat wheezing, shortness of breath, chest tightness associated with lung diseases like asthma, chronic bronchitis, emphysema, chronic obstructive pulmonary disorder (COPD), etc.