Metaproterenol Sulfate
Metaproterenol sulfate is a bronchodilator medication used to treat asthma, bronchitis, and other respiratory conditions characterized by airway constriction. It works by relaxing the smooth muscles in the airways, allowing for easier breathing and relief from wheezing and shortness of breath.
A bronchodilator that relaxes airway muscles to relieve breathing difficulties in asthma and other respiratory conditions.
Key facts at a glance
- RxNorm
- 6804
- Generic
- Metaproterenol Sulfate
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- 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.
Treats asthma, bronchitis, emphysema, and other reversible obstructive airway conditions that cause wheezing, coughing, and shortness of breath.
As a beta-2 adrenergic agonist, it stimulates beta-2 receptors in bronchial smooth muscle, causing the airways to relax and widen (bronchodilation), which improves airflow to the lungs.
May cause side effects such as tremor, rapid heartbeat, or nervousness. Should be used exactly as prescribed; excessive use may reduce effectiveness. Generally reserved for patients who cannot tolerate other first-line asthma medications.
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 28, 2026. · Read our editorial policy