Acetylcysteine (Mucomyst) is a mucolytic that can also be used in the treatment of overdosage of which drug?

Inhaled fluticasone (Flovent) is a corticosteroid medication that is commonly used in the treatment of asthma. It works by reducing inflammation in the airway, which is a key component of asthma. By decreasing inflammation, it helps to prevent and control asthma symptoms, such as wheezing, coughing, and shortness of breath.

The other options mentioned are incorrect:
B. Relieves symptoms of an acute asthma attack: Inhaled fluticasone is not intended for immediate relief during an acute asthma attack. It is a long-term control medication used to manage and prevent asthma symptoms.

C. Causes immediate bronchodilation: Fluticasone does not cause immediate bronchodilation, which refers to the widening of the airways to improve breathing. Bronchodilation is typically achieved with short-acting beta-agonist medications, such as albuterol.

D. Reduces blood pressure and heart rate: Fluticasone is not known to have a direct effect on blood pressure or heart rate. Its primary action is to reduce inflammation in the airway for the management of asthma.

Expectorants are medications that help to loosen and thin mucus in the respiratory tract, making it easier to cough up and expel. They work by increasing the production of respiratory tract secretions, which helps to hydrate and thin the mucus, making it less sticky and easier to clear from the airways. By stimulating the production and secretion of mucus, expectorants promote coughing and facilitate the removal of excess mucus and phlegm from the respiratory system.

It's important to note that expectorants are primarily used for productive coughs (coughs that produce phlegm or mucus). If the cough is dry and non-productive, other types of cough suppressants or remedies may be more appropriate.

Regarding the other options:

Reduces inflammation: Expectorants do not have a direct effect on reducing inflammation in the respiratory tract. Anti-inflammatory medications such as glucocorticoids are typically used for reducing inflammation in conditions like asthma or chronic obstructive pulmonary disease (COPD).

Dries mucous membranes: Expectorants do not have a drying effect on mucous membranes. In fact, they work to increase the hydration and fluidity of respiratory secretions.

Suppresses the urge to cough: Expectorants do not suppress the urge to cough. They promote coughing by facilitating the clearance of mucus and phlegm from the airways. Cough suppressants, on the other hand, are medications used to relieve a dry, non-productive cough by suppressing the cough reflex.