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Medications and Drugs

Brand Names: Alupent, Metaprel

Generic Name: metaproterenol (Pronunciation: meh ta proe TER e nall)

What is metaproterenol (Alupent, Metaprel)?

Metaproterenol is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.

Metaproterenol is used to treat conditions such as asthma, bronchitis, and emphysema.

Metaproterenol may also be used for conditions other than those listed in this medication guide.

What are the possible side effects of metaproterenol (Alupent, Metaprel)?

If you experience any of the following serious side effects, stop taking metaproterenol and seek emergency medical attention or contact your doctor immediately:

  • an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives); or
  • chest pains or an irregular heart beat.

Other, less serious side effects may be more likely to occur. Continue to take metaproterenol and talk to your doctor if you experience

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about metaproterenol (Alupent, Metaprel)?

It is very important that you use the metaproterenol inhaler or nebulizer properly, so that the medicine gets into the lungs. Your doctor may want you to use a spacer with the inhaler. Talk to your doctor about proper inhaler and nebulizer use.

Seek medical attention if you notice that you require more than your usual or more than the maximum amount of any asthma medication in a 24-hour period. An increased need for medication could be an early sign of a serious asthma attack.



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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