Which of the following medications are prescribed for the symptoms of asthma?

Spiriva is the correct choice for addressing the symptoms of asthma. It is a medication that contains the active ingredient tiotropium, which is a long-acting anticholinergic bronchodilator. By relaxing the muscles around the airways, it helps to open the airways in the lungs, making it easier for patients to breathe. Spiriva is often utilized for chronic obstructive pulmonary disease (COPD) but can also be beneficial for individuals with asthma, particularly those who have not been adequately controlled with other treatments.

In contrast, the other medications listed do not primarily target asthma symptoms. Inderal, which contains propranolol, is a beta-blocker used mainly for heart-related conditions, and it can actually cause bronchoconstriction, making it potentially harmful for asthma patients. Tussionex is a cough suppressant that contains chlorpheniramine and hydrocodone, used primarily for managing cough rather than asthma. Propranolol, also a beta-blocker, serves similar functions as Inderal and is not indicated for asthma treatment due to its potential adverse respiratory effects.

Therefore, Spiriva stands out as the suitable medication for relieving the symptoms of asthma.