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Alupent is a prescription drug approved by the Food and Drug Administration (FDA) to treat bronchospasms in diseases such as asthma. Alupent is also known by its drug name, Metaproterenol. Alupent is sometimes prescribed to treat respiratory symptoms in people with food allergies. Since the FDA has not approved Alupent specifically for this usage, it may be considered “off-label.”

Alupent is a bronchodilator, a drug that dilates the bronchi and bronchioles in the lungs, making it easier to breathe. Alupent is believed to work by relaxing smooth muscles in the airways. Alupent is considered a short-acting bronchodilator.

How do I take it?
Alupent is taken as needed every three or four hours.

Alupent comes as an oral inhaler.

Side effects
The FDA-approved label for Alupent lists common side effects including headache, dizziness, heart palpitations, upset stomach, tremors, cough, sore throat, nausea, and vomiting.

Rare but serious side effects listed for Alupent include fast heartbeat.

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