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GSK / Ventolin
Ventolin relaxes the smooth muscle in the lung and dilates airways to improve breathing. Ventolin is used in the treatment of asthma, chronic bronchitis, and emphysema. The inhaler enables the drug to reach deep into the lungs for maximum benefit.
How does it work?
This medicine contains the active ingredient salbutamol, which is a type of medicine known as a short-acting beta 2 agonist. It works by acting on receptors in the lungs called beta 2 receptors. Stimulation of these receptors causes the muscles in the airways to relax, allowing the airways to open. In conditions where there is narrowing of the airways, such as asthma, emphysema and bronchitis, it is difficult for air to get in and out of the lungs. By opening the airways, salbutamol makes it easier to breathe. Salbutamol is most commonly taken using an inhaler device. Inhaling the medicine allows it to act directly in the lungs where it is needed most. It also reduces the potential for side effects occurring in other parts of the body, as the amount absorbed into the blood through the lungs is lower than if it is taken by mouth. Salbutamol when used as an inhaler is known as a reliever. This is because it works very quickly to relieve asthma attacks or shortness of breath. Salbutamol inhalers can also be used to open the airways shortly before exercising. Salbutamol tablets are sometimes prescribed if inhaled salbutamol is being used frequently to relieve shortness of breath. The tablets are taken regularly to help keep the airways open all the time and reduce the need for the inhaler.
What is it used for?
- Asthma
- Chronic obstructive pulmonary disease
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