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rubidium (82Rb) chloride

V09GX04

Forms & Strengths

Generator-produced radiopharmaceutical
Rubidium Rb 82 Generator yielding rubidium Rb-82 chloride injection

Adult Dosing

10 to 20 mCi (370 to 740 MBq) intravenously per PET scan
Administered as an infusion at a rate of 10 to 50 mL/min

Pediatric Dosing

Safety and efficacy in pediatric patients have not been established

Indications

Indicated for positron emission tomography (PET) imaging of the myocardium under rest or pharmacologic stress conditions
Evaluation of regional myocardial perfusion in adult patients with suspected or established coronary artery disease

Mechanism of Action

Potassium analog taken up by viable myocardial tissue via the Na+/K+-ATPase pump
Myocardial uptake is proportional to organ blood flow, allowing identification of ischemic and infarcted regions

Contraindications

None known when used for indicated diagnostic PET imaging

Adverse Reactions

Generally well-tolerated due to extremely short half-life
Rare adverse events include flushing, dizziness, altered taste, and transient changes in blood pressure

Drug Interactions

Drugs that alter myocardial perfusion or affect the Na+/K+-ATPase pump (e.g., inotropes, beta-blockers) may indirectly affect regional uptake
No direct pharmacokinetic drug-drug interactions documented due to rapid radioactive decay (half-life approx. 75 seconds)

Curated Content: Needs Vetting Before Put to Clinical Use