Metaproterenol
Metaproterenol is a short-acting beta-2 adrenergic agonist (SABA) used as a bronchodilator to relieve acute bronchospasm. It is primarily prescribed for asthma and other respiratory conditions causing airway constriction, providing rapid symptom relief through inhalation administration.
Metaproterenol is a rescue bronchodilator that relaxes airway muscles to quickly relieve breathing difficulties in asthma and related conditions.
Key facts at a glance
- ATC
- R03AB03
- RxNorm
- 7688
- Generic
- Metaproterenol
- Class
- atc-r03
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- solution, tablet
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of acute bronchospasm associated with asthma, chronic obstructive pulmonary disease (COPD), and other obstructive airway conditions where rapid bronchodilation is needed.
Metaproterenol stimulates beta-2 adrenergic receptors in bronchial smooth muscle, causing relaxation of the airways and improved airflow. It has a relatively rapid onset when delivered via inhalation.
Should be used for acute symptom relief rather than as a maintenance therapy. Overuse may lead to decreased effectiveness and potential cardiovascular effects. Patients should follow their prescribed dosing schedule and seek medical advice if they need to use it more frequently.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy