Salmeterol

Salmeterol

Salmeterol is a long-acting beta2 adrenergic receptor agonist (LABA) used in the maintenance and prevention of asthma symptoms and in the treatment of chronic obstructive pulmonary disease (COPD). It is marketed and manufactured by GlaxoSmithKline.

Pharmacology

Salmeterol works by stimulating the beta2 adrenergic receptors in the lungs, which causes relaxation of the smooth muscles in the airways. This results in bronchodilation, or widening of the airways, which helps to alleviate symptoms such as wheezing, coughing, and shortness of breath. Unlike short-acting beta2 agonists like albuterol, salmeterol has a long duration of action and is therefore used for long-term control rather than immediate relief of symptoms.

Clinical Use

Salmeterol is used in the management of asthma and COPD. It is often used in combination with other medications, such as inhaled corticosteroids, for better control of symptoms. Salmeterol is not intended for use in relieving acute asthma symptoms, and patients are advised to have a short-acting beta2 agonist available for such situations.

Side Effects

Common side effects of salmeterol include headache, throat irritation, and flu-like symptoms. More serious side effects may include chest pain, fast or irregular heartbeat, and severe breathing problems. It is important for patients to discuss any side effects with their healthcare provider.

Contraindications

Salmeterol is contraindicated in patients with a known hypersensitivity to the drug or any of its components. It should also be used with caution in patients with cardiovascular disorders, diabetes, and hyperthyroidism.

See Also

• Asthma
• Chronic obstructive pulmonary disease
• Beta2 adrenergic receptor agonist
• GlaxoSmithKline