bronchodilators基础释义：支气管扩张剂。发音：[?br??nθ??d??lɑ?t?rz]。例句：The bronchodilators are used to treat asthma and chronic bronchitis.（支气管扩张剂用于治疗哮喘和慢性支气管炎。）音标和基础释义暂缺。
bronchodilators
Bronchodilators是一种常用的药物，用于治疗哮喘和慢性阻塞性肺疾病（COPD）。它们通过扩张气道，使呼吸变得更加轻松。
发音：br??n?k??d?l??t?rz
英语范文：
Dear Doctor,
I have been suffering from asthma for years. It makes me feel breathless and anxious. I have tried various medications, but none of them have been as effective as bronchodilators.
They make my lungs feel like they are expanding, and I can finally breathe freely again. I always take my bronchodilator before going to bed, and it helps me sleep soundly through the night.
Bronchodilators are a lifesaver for me, and I would like to recommend them to anyone who is struggling with breathing difficulties. They are a simple and effective treatment that can make a big difference in someone's life.
Thank you for your help and support.
Best Regards,
[Your Name]
Bronchodilators
Bronchodilators are drugs that are used to relax the muscles around the bronchi, allowing easier breathing. They are commonly used in the treatment of asthma and chronic obstructive pulmonary disease (COPD).
The most common types of bronchodilators are xanthines, beta-2 agonists, and anticholinergics. Xanthines include caffeine, theophylline, and theobromine, which relax smooth muscle by stimulating the adenosine receptors in the lungs. Beta-2 agonists, such as salbutamol and fenoterol, relax smooth muscle by stimulating beta-2 receptors on the cells. Anticholinergics, such as ipratropium bromide, block the action of acetylcholine on airway smooth muscle, which relaxes the muscles and allows easier breathing.
Inhaling a bronchodilator can provide immediate relief from shortness of breath and coughing. However, they do not cure the underlying condition and may need to be used regularly to maintain control of the condition.
In addition to their use in treating respiratory diseases, bronchodilators are also used in the treatment of other conditions such as migraine headaches and anxiety disorders. By relaxing blood vessels and reducing muscle tension, they can provide relief from symptoms such as pain, nausea, and shortness of breath.
In conclusion, bronchodilators are an essential tool in the treatment of respiratory diseases such as asthma and COPD. They provide immediate relief from shortness of breath and coughing and can be used to maintain control of the condition. Additionally, they are used in the treatment of other conditions such as migraine headaches and anxiety disorders to provide relief from symptoms such as pain and shortness of breath.
