Cosult your doctor before taking this: Asthalin 100 mcg Inhaler 200 Mdi is used to treat asthma and chronic obstructive pulmonary disease (COPD). Asthalin 100 mcg Inhaler 200 Mdi helps relieve symptoms like coughing, wheezing and shortness of breath. Asthalin 100 mcg Inhaler 200 Mdi contains salbutamol, which relaxes the muscles in the airways and increases airflow to the lungs. Thus, it provides relief from symptoms such as coughing, wheezing and shortness of breath. The common side effects of Asthalin 100 mcg Inhaler 200 Mdi include nausea, vomiting, restlessness, headache, muscle tightness, dryness or soreness of the throat, dizziness, sleepiness, nasal congestion, and increased heart rate. Most of these side effects do not require medical attention and gradually resolve over time. However, if the side effects persist, please seek medical attention.