Salmeterol

ATC Code R03AC12

Salmeterol

Definition

A highly selective, long-acting beta-2 adrenergic agonist with bronchodilatory activity. Salmeterol's benzene moiety resembles the structure of catecholamines, and occupies the active site of beta-2 adrenergic receptor, while the long, lipophilic side chain of salmeterol, binds to the so called 'exosite' near the beta-2 adrenergic receptors. The binding at the exosite allows the active portion of the molecule to remain at the receptor site and continually engage and disengage with the receptor, therefore providing a long duration of action. This agent stimulates intracellular adenyl cyclase to catalyze the conversion of adenosine triphosphate to cyclic-3',5'-adenosine monophosphate (cAMP). Increased cAMP levels result in relaxation of bronchiolar smooth muscle, bronchodilation and increased bronchial airflow.

Also known as SALMETEROL — per NCIT

Also identified as

Indications

Disease Relation Source
Asthma may treat MEDRT · Public domain (U.S. Government work)

Organ Effects

Organ Side effect / interaction Source
Lungs may treat a disease of this organ DERIVED · CC BY 4.0
Respiratory system may treat a disease of this organ DERIVED · CC BY 4.0

2 entries above are marked DERIVED: Atlas Médico inferred them by combining two sourced claims, and no source asserts these links directly. Treat them as a navigation aid, not as a clinical statement.