salmeterol, Serevent (cont.)

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STORAGE: Salmeterol should be stored between 36 and 86 F (2.2 to 30C). The canister should be kept away from heat or flame and not punctured; it should not be frozen or placed in direct sunlight .

PRESCRIBED FOR: Salmeterol is used twice daily (morning and evening) for the maintenance treatment of asthma and in preventing spasm of the airways (bronchospasm) in patients 12 years and older. Salmeterol is also used for the prevention of exercise induced asthma. Salmeterol is a long-acting beta-2 agonist, its action starts within 15 minutes and can last more than 12 hours. Therefore, salmeterol is useful in patients that require frequent administration of short acting beta-2 agonists, such as albuterol, for control of their asthma symptoms. Salmeterol is generally not used in patients whose asthma symptoms can be easily controlled with infrequent administration of short acting inhalers. Some patients with chronic bronchitis and emphysema may also benefit from salmeterol when their symptoms are related to reversible airway narrowing.

DOSING: Salmeterol inhalations should not be used more often than prescribed (twice per day) and proper techniques of inhalation closely followed. Salmeterol is metabolized by the liver and should be used with caution in patients with liver dysfunction. Salmeterol is not meant to be used in treating acute asthma attacks; short acting inhaler medications are used for acute attacks. When using salmeterol in preventing exercised induced asthma, the medication is administered 30 to 60 minutes before exercise. Salmeterol does not take the place of oral or inhaled corticosteroids.

DRUG INTERACTIONS: Salmeterol can increase heart rate, blood pressure, and cause chest pain and excitement, especially if used in higher doses than recommended or used in those with coronary heart disease or high blood pressure. Tricyclic antidepressants and salmeterol should not be combined because of additive effect on the vascular system. In rare instances, salmeterol can induce paradoxical worsening of bronchospasm (which can be life-threatening). If this occurs, salmeterol should be discontinued, and the doctor notified immediately. Rare allergic reactions to salmeterol can cause skin rash, hives, swelling, bronchospasm, and anaphylaxis. Worsening of diabetes and lowering of potassium have also been described.

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