What is the recommended dosage of Salmeterol for patients aged 4 years and older?

The recommended dosage of Salmeterol for patients aged 4 years and older is 50 mcg per puff, with the administration being one puff twice daily. This guideline is consistent with established dosing information for Salmeterol, a long-acting beta-agonist (LABA) used in the management of asthma.

The rationale behind the twice-daily dosing is to maintain adequate bronchodilation throughout the day and provide control over asthma symptoms. Each dose is designed to provide sustained relief from bronchospasm while minimizing the risk of overuse, which is particularly important in asthma management.

In contrast, dosages listed in the other options do not reflect the correct and safe administration guidelines for Salmeterol, as they either exceed the recommended dosage or propose incorrect frequency. Adhering to the proper dosage not only ensures effective management of asthma symptoms but also aids in preventing potential side effects associated with improper use of the medication.