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Clinical Study Experience
Serious adverse reactions were not observed in the AdreView (iobenguane i 123 injection for intravenous use) clinical study. The data described below reflect AdreView (iobenguane i 123 injection for intravenous use) exposure to 251 patients with known or suspected pheochromocytoma or neuroblastoma. The average ages were 49 years (range 17 – 88 years) for adults and, for pediatric patients, 4 years (range 1 month - 16 years). Slightly less than half the patients were male. All patients were monitored for adverse reactions over a 24 hour period following AdreView (iobenguane i 123 injection for intravenous use) administration.
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Adverse reactions were all mild to moderate in severity and were predominantly isolated occurrences ( ≤ 2 patients) of one of the following reactions: dizziness, rash, pruritus, flushing or injection site hemorrhage.
Because postmarketing reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Hypersensitivity reactions have uncommonly been reported during the postmarketing use of AdreView [see WARNINGS AND PRECAUTIONS].
Read the AdreView (iobenguane i 123 injection for intravenous use) Side Effects Center for a complete guide to possible side effects
The following drugs have the potential to decrease the uptake of norepinephrine and cause false negative imaging results: antihypertensives that deplete norepinephrine stores or inhibit reuptake (e.g., reserpine, labetalol), antidepressants that inhibit norepinephrine transporter function (e.g., amitriptyline and derivatives, imipramine and derivatives, selective serotonin reuptake inhibitors), sympathomimetic amines (e.g., phenylephrine, phenylpropanolamine, pseudoephedrine and ephedrine), and cocaine. Clinical studies have not determined which specific drugs may cause false negative imaging results nor whether all drugs in any specific pharmacologic class have the same potential to produce the negative imaging results. Increasing the dose of AdreView (iobenguane i 123 injection for intravenous use) will not overcome any potential uptake limiting effect of these drugs. Before AdreView (iobenguane i 123 injection for intravenous use) administration, discontinue (for at least 5 biological half-lives) drugs known or expected to reduce norepinephrine uptake, as clinically tolerated.
Read the AdreView Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 10/2/2009
Additional AdreView Information
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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