what does salbutamol do

Salbutamol is a medication used to relax and open up airways in people with asthma and chronic obstructive pulmonary disease (COPD) . It is a fast-acting bronchodilator and reliever medication that belongs to a class of medications known as short-acting beta-2 adrenergic agonists. Salbutamol works by stimulating the beta-2 adrenoceptors in bronchial muscles, which are the smooth muscles lining the two large tubes (bronchi) that carry air from the windpipe (trachea) to the lungs. This causes the bronchi to relax and dilate, widening the airway for a short period of about 4 to 6 hours and making it easier to breathe. Salbutamol is available in various forms, including inhalers, tablets, capsules, syrup, and injections. It is generally safe and effective with few side effects if used as advised by a doctor, pharmacist, or nurse.