Which type of drug is commonly used to treat asthma?

• A. Antihistamines
• B. Bronchodilators
• C. Analgesics
• D. Antibiotics

Answer: (B)

Bronchodilators are commonly used to treat asthma because they work by relaxing the muscles around the airways, which helps to open them up and makes breathing easier. This bronchodilation is crucial in the management of asthma, especially during an asthma attack or when experiencing symptoms such as wheezing and shortness of breath.

In contrast, antihistamines are primarily used to treat allergic reactions and symptoms such as sneezing and itching, not specifically for asthma management. Analgesics are pain relievers and do not have a role in treating respiratory conditions. Antibiotics are used to treat infections caused by bacteria and are not effective for asthma, which is primarily a chronic inflammatory disease of the airways. Thus, bronchodilators are the most relevant and effective in addressing the symptoms and management of asthma.