Understanding Bronchodilators and Their Role in Respiratory Health

Bronchodilators are medications that help widen the airways in the lungs, allowing easier breathing for individuals with conditions like asthma or COPD.
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Prepared by Lee Cheng, reviewed by Dr. Helena Rodriguez

Bronchodilator FAQ


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What are bronchodilators used for?

Bronchodilators are a type of medication that make breathing easier by relaxing the muscles in the lungs and widening the airways (bronchi). They're often used to treat long-term conditions where the airways may become narrow and inflamed, such as: asthma , a common lung condition caused by inflammation of the airways

How long does a bronchodilator last?

Bronchodilator metabolism occurs in the gastrointestinal tract by cytochrome P-450 enzymes. About 80% to 100% is excreted in the urine, and less than 20% is excreted in feces. Short-acting bronchodilators have a half-life of 3 to 6 hours, while longer-acting bronchodilators have a half-life of 18 to 24 hours.

How do bronchodilators work?

Bronchodilators are a type of medication that make breathing easier. They do this by relaxing the muscles in the lungs and widening the airways (bronchi). They’re often used to treat long-term conditions where the airways may become narrow and inflamed. This includes: asthma – a common lung condition caused by inflammation of the airways

Which respiratory conditions require bronchodilators?

Various respiratory conditions may require bronchodilators, including asthma and chronic obstructive pulmonary disease. They are used to either reverse asthma symptoms or improve lung function in patients with chronic obstructive pulmonary disease.

What are oral bronchodilators?

Oral bronchodilators are medicines that are used to treat breathing problems in people with asthma and other lung-related problems such as chronic obstructive pulmonary disease (COPD). There are two types of oral bronchodilators available to prescribe in the UK.

Bronchodilator References

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