Isoproterenol Sulfate
Isoproterenol Sulfate is a synthetic catecholamine that stimulates both beta-1 and beta-2 adrenergic receptors. It is primarily used in emergency situations to increase heart rate in patients with bradycardia or heart block, and to treat bronchospasm during anesthesia. The medication increases cardiac output, heart rate, and causes bronchodilation, making it useful in critical care settings where rapid cardiac and respiratory support is needed.
A non-selective beta-adrenergic agonist used for emergency treatment of slow heart rate and bronchospasm.
Key facts at a glance
- RxNorm
- 82031
- Generic
- Isoproterenol 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.
Treatment of symptomatic bradycardia, heart block, and cardiac arrest when temporary stimulation of the heart is needed. Also used for bronchospasm during anesthesia and as an adjunct in asthma when other agents are not effective.
Isoproterenol acts as a non-selective beta-adrenergic receptor agonist, stimulating beta-1 receptors in the heart to increase heart rate and cardiac output, while beta-2 receptor stimulation causes bronchial smooth muscle relaxation and bronchodilation.
Must be administered with continuous cardiac monitoring due to risk of arrhythmias and tachycardia. Use with caution in patients with coronary artery disease, hypertension, or hyperthyroidism. Not a first-line long-term therapy; typically reserved for acute care settings. Contraindicated in patients with certain arrhythmias such as atrial fibrillation with rapid ventricular response.
Official drug label
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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