Asthma Home > Formoterol

Formoterol is used to treat or prevent airway spasms due to asthma or COPD, as well as to prevent exercise-induced asthma attacks. The drug works by opening up the airways and allowing more air to get into and through the lungs. It comes in a capsule, which is punctured and inhaled using an Aerolizer. Common side effects include shakiness, nausea, and chest infections.

What Is Formoterol?

Formoterol fumarate (Foradil®) is a prescription medication used to prevent airway spasms (called bronchospasms) caused by asthma or chronic obstructive pulmonary disease (COPD). It is also approved to prevent exercise-induced asthma attacks.
(Click What Is Formoterol Used For? for more information, including possible off-label uses for the drug.)

Possible Side Effects

As with any medicine, side effects are possible with formoterol. However, not everyone who takes it will experience side effects. In fact, most people tolerate the medication quite well.
When side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
Common side effects of formoterol include but are not limited to:
  • Bronchitis or other infections
  • Difficulty breathing
  • Chest pain
  • Shakiness (tremors)
  • Insomnia.
(Click Side Effects of Formoterol to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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