Comparative Pharmacology
Head-to-head clinical analysis: MACROTEC versus XENOVIEW.
Peer-Reviewed Evidence
Head-to-head clinical analysis: MACROTEC versus XENOVIEW.
MACROTEC vs XENOVIEW
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Not applicable for diagnostic use.
Xenoview is a paramagnetic contrast agent for MRI that enhances T1 relaxation by shortening the longitudinal relaxation time of water protons in tissues where it accumulates, thereby increasing signal intensity on T1-weighted images.
5 mCi (185 MBq) intravenously as a single dose for lung perfusion imaging.
Not applicable (diagnostic agent, not therapeutic); refer to imaging protocol.
None Documented
None Documented
6 hours; prolonged in renal impairment (up to 30 hours in ESRD)
Terminal elimination half-life is 3-5 hours in patients with normal renal function; may be prolonged in renal impairment.
Renal: 95% as unchanged drug; biliary/fecal: <5% as metabolites
Primarily renal excretion (60-70% unchanged drug), with 20-25% biliary/fecal elimination.
Category C
Category C
Radiopharmaceutical
Radiopharmaceutical