Which of the following medications is recommended for immediate relief of asthma symptoms?

Ventolin, which contains albuterol as its active ingredient, is classified as a short-acting beta-agonist (SABA). It is specifically recommended for the immediate relief of asthma symptoms because it works quickly to relax bronchial muscles, leading to rapid bronchodilation. This allows for relief from acute asthma attacks or symptoms such as wheezing and shortness of breath.

In contrast, Atrovent, Flovent, and Salmeterol do not offer immediate relief. Atrovent (ipratropium bromide) is an anticholinergic that is typically used as an adjunctive treatment in moderate to severe asthma but is not effective for immediate relief. Flovent (fluticasone propionate) is an inhaled corticosteroid used for long-term control of asthma symptoms but does not provide quick relief during an acute attack. Salmeterol is a long-acting beta-agonist (LABA) that is used for long-term control rather than for immediate relief, as it has a slower onset of action compared to Ventolin.

Thus, Ventolin is the medication of choice when acute symptom relief is necessary in asthma management.