What is the primary therapeutic use of the Long-Acting Beta Agonist (LABA) Salmeterol?
Show answer and explanation
Correct answer: Maintenance therapy for chronic asthma and COPD
Salmeterol has a long lipophilic side chain that keeps it near the Beta-2 receptor for extended periods, providing about 12 hours of bronchodilation. Because of its slow onset of action, it is used for prophylaxis and maintenance, never for acute 'rescue' therapy.
Keep practicing
More Sympathomimetics questions
- Which receptor subtype is responsible for the 'tocolytic' effect (relaxation of the uterus) of drugs like Terbutaline?
- Which enzyme is responsible for the degradation of circulating catecholamines like Epinephrine in the liver and kidneys?
- Mirabegron is a sympathomimetic used for overactive bladder. What is its mechanism of action?
- Why is Norepinephrine primarily used to treat septic shock rather than Epinephrine?
- Which side effect is commonly associated with the central action of Amphetamines?
- What is the chemical structural difference between catecholamines and non-catecholamines?