asthalin 100mcg inhaler is a fast-acting bronchodilator used to relieve asthma symptoms and other respiratory disorders such as chronic obstructive pulmonary disease (COPD). It contains salbutamol (also known as albuterol), which relaxes and opens the muscles in the airways, making it easier to breathe. This inhaler is frequently used to treat abrupt episodes of wheezing, shortness of breath, chest tightness, or coughing. Asthalin 100 mcg is commonly referred to as a "rescue inhaler" due to its rapid start of action, which typically provides relief within minutes. It is normally used as needed, and the dosage should be taken exactly as prescribed by a doctor. Tremors, headaches, and a rapid heartbeat are all possible negative effects of excessive use.