Asthalin 100mcg Inhaler is a fast-acting bronchodilator that is used to treat the symptoms of asthma and chronic obstructive pulmonary diseases (COPD), including coughing, wheezing, and breathlessness. It works by relaxing the muscles in your airways, making it easier for air to get in and out of your lungs. This will relieve symptoms such as tightness in your chest, shortness of breath, wheezing, and coughing, and help you carry out your daily activities more easily.Asthalin 100mcg Inhaler is a "reliever" inhaler that provides quick relief from breathing problems when you need it. You will usually be given another inhaler, known as a "preventer," to use regularly every day to prevent your symptoms. Asthalin 100mcg Inhaler works quickly, and the effects can last several hours. It can be used at any time of day, but only use it when you notice symptoms, or before an activity that can cause breathlessness.It's important to use your inhaler correctly for it to work effectively. If you are unsure, ask your doctor or nurse for guidance. It's also important not to stop using this medicine unless advised to do so by your doctor. If you stop, your breathing problems could worsen.Asthalin 100mcg Inhaler is generally safe and effective, but it may cause some common side effects such as tremors, headaches, and a fast heartbeat. These side effects are usually not dangerous and should improve over time. However, there are rare side effects, and if you experience chest pain, severe headaches, or dizziness, contact your doctor immediately.Before using Asthalin 100mcg Inhaler, tell your doctor if you have high blood pressure, an overactive thyroid gland, a history of heart problems, diabetes, or low levels of potassium in your blood to make sure it is safe for you. Also, inform your doctor if you are pregnant or breastfeeding before taking this medicine.This medicine can make you feel dizzy or shaky, so avoid driving, using tools, or operating machinery until you feel better. Smoking can cause damage to your lungs and make your condition worse, so it's important to avoid smoking.