Salmeterol belongs to the class of medications called long-acting bronchodilators. It is used for the treatment of asthma. It works by opening the airways and making breathing easier. It is used for people 4 years of age and older who are also using inhaled corticosteroids to treat their asthma. These people still experience breakthrough asthma symptoms (coughing, wheezing, tightening of the airways) and require regular use of a short-acting bronchodilator such as salbutamol, terbutaline, or fenoterol.
Salmeterol may also be used for the treatment of chronic obstructive pulmonary disease (COPD).
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. As well, some forms of this medication may not be used for all of the conditions discussed here. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Each circular, double-foil blister pack contains 4 regularly distributed blisters, each containing a dry powder blend of microfine salmeterol. Each blister contains 50 µg of salmeterol. Nonmedicinal ingredient: lactose.
Each dose of dry powder of microfine salmeterol for inhalation contains 50 µg of salmeterol. Nonmedicinal ingredient: lactose.
The recommended dose for people four years of age and older is 1 blister (50 µg) used with the Diskhaler or Diskus twice daily. This medication must not be used to treat acute symptoms of asthma. For "rescue" purposes, use short-acting medications that start to work quickly such as salbutamol, terbutaline, or fenoterol. Ask your pharmacist to demonstrate the proper administration of the medication for the particular device you are using.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones given here, do not change the way that you are taking the medication without consulting your doctor.
It is very important to take this medication on a regular schedule as prescribed by the doctor. Do not stop taking any of your regularly inhaled medications unless instructed to do so by your doctor. If you miss a dose of this medication, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Do not use this medication if you:
Although most of the side effects listed below don’t happen very often, they could lead to serious problems if you do not seek medical attention.
Check with your doctor immediately if any of the following side effects occur:
Asthma flare-ups: Talk to your doctor and make sure you know what to do if you have an asthma flare-up. This is sometimes referred to as an "asthma action plan." Knowing how to adjust your medication in response to an acute worsening of asthma is an important safety measure.
Medical conditions: If you have high blood pressure, heart problems, diabetes, thyroid problems, or epilepsy (seizures), discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Monitoring asthma: Talk to your doctor about ways for you to monitor your asthma at home, such as a peak flow meter. Peak flow metres measure the amount of air you can expel in a short time and can help you identify when your asthma might be flaring up even before you begin to experience symptoms.
Prevention only: Salmeterol should not be used to treat acute symptoms (as a "rescue" medication). It is meant for prevention purposes only. Salmeterol should be taken along with other medications called inhaled corticosteroids. Short-acting medications such as salbutamol, terbutaline, or fenoterol are required for relief of breathing symptoms as instructed by your doctor and should be available at all times.
Worsening symptoms: If you find you need to use your short-acting ("rescue") inhaler more often or if your condition seems to worsen, call your doctor. If you have not been given instructions beforehand, contact your doctor immediately about what to do if any of the following situations occur (they may be signs of seriously worsening asthma):
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: It is not known if salmeterol passes into breast milk. If you are a breast-feeding mother and are taking this medication, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
Children: The safety and effectiveness of using salmeterol have not been established for children younger than 4 years of age.
There may be an interaction between salmeterol and any of the following:
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