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Medication side effect

Can Isoproterenol cause ventricular tachycardia?

Yes — ventricular tachycardia has been reported as a side effect of Isoproterenol in FDA adverse-event reports (FAERS) and product labeling. It is among the more frequently reported events for this medication. These are voluntary reports, so they show what's been reported, not how often it happens.

Reported adverse reactions

ADVERSE REACTIONS The following adverse reactions have been associated with use of isoproterenol. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency reliably or to establish a causal relationship to drug exposure. Nervous system disorders: Nervousness, headache, dizziness, visual blurring Cardiovascular: Tachycardia, tachyarrhythmias, palpitations, angina, ventricular arrhythmias, Adams-Stokes attacks, pulmonary edema Respiratory: Dyspnea Other: Flushing of the skin, sweating, mild tremors, pallor, nausea ADVERSE REACTIONS Common adverse reactions with isoproterenol include tachycardia and palpitations ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact KVK-Tech Inc at 1-800-862-3895 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Warnings

WARNINGS AND PRECAUTIONS WARNINGS AND PRECAUTIONS • Cardiac arrhythmias and ischemia may be induced by Isoproterenol Hydrochloride Injection ( 5.1 ) • Sulfite: Isoproterenol Hydrochloride Injection contains metabisulfite, which may cause allergic reaction ( 5.2 ) 5.1 Cardiac Arrhythmias and Ischemia Isoproterenol may induce cardiac arrhythmias and myocardial ischemia in patients, especially patients with coronary artery disease, or cardiomyopathy. 5.2 Allergic Reactions associated with Sulfite Isoproterenol hydrochloride injection contains sodium metabisulfite, which may cause mild to severe allergic reactions including anaphylaxis or asthmatic episodes, particularly in patients with a history of allergies. However, the presence of metabisulfite in this product should not preclude its use for treatment in emergency situations, even if the patient is sulfite-sensitive, as the alternatives to using isoproterenol in a life-threatening situation may not be satisfactory.

Other reported side effects of Isoproterenol

torsade de pointeselectrocardiogram qt prolongedcardiogenic shockventricular fibrillationtoxic epidermal necrolysis

Frequently asked questions

Is ventricular tachycardia a side effect of Isoproterenol?

Yes — ventricular tachycardia has been reported as a side effect of Isoproterenol in FDA adverse-event reports (FAERS) and/or its labeling. These are voluntary reports, so they show what's been reported, not how often it happens.

How common is ventricular tachycardia with Isoproterenol?

ventricular tachycardia is among the more frequently reported events for Isoproterenol in FAERS. Reporting volume isn't a true incidence rate — check the prescribing information for documented frequencies.

What should I do if I have ventricular tachycardia while taking Isoproterenol?

Don't stop a prescribed medication on your own. Tell your prescriber or pharmacist — they can tell you whether it's expected, whether it needs attention, and what to do next.

Informational only, drawn from FDA adverse-event reporting (FAERS) and labeling — not medical advice, and not proof a medication caused an effect. Talk to your clinician or pharmacist about any side effect.

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