About isoproterenol
Nonselective beta-adrenergic agonist
Used for
- Short-term treatment of severe slow heart rate or heart block
- Temporary support for selected heart problems under close monitoring
Usual adult dose
For slow heart rate: commonly 2–10 micrograms/minute by continuous intravenous infusion, adjusted to response.
Usual dose in children
Specialist-directed intravenous infusion; dosing depends on age, weight, and clinical response.
Common side effects
- Fast or irregular heartbeat
- Chest pain
- Tremor or nervousness
- Headache
Important warnings
- Requires continuous heart rhythm and blood pressure monitoring.
- Can trigger dangerous heart rhythms or worsen chest pain.
- Use cautiously with heart disease or overactive thyroid.
- Not for routine treatment of cardiac arrest.
Pregnancy
Use only when clearly needed; human pregnancy data are limited, and maternal heart effects may affect the fetus.
Breastfeeding
Information is limited; use requires clinical assessment.
Interactions
- Other stimulants or beta-agonists may increase fast heartbeat or arrhythmia risk.
- Beta-blockers can oppose its effects.
- Some anesthetics increase the risk of abnormal heart rhythms.
- Tricyclic antidepressants may intensify cardiovascular effects.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.