THALLOUS CHLORIDE TL 201
LOE ApproachingNDAINJECTIONINJECTABLE
Approved
Feb 1982
Lifecycle
LOE Approaching
Competitive Pressure
30/100
Data completeness
2/8 — Basic
THALLOUS CHLORIDE TL 201 by GE HealthCare is 201 with no carrier added accumulates in viable myocardium in a manner analogous to that of potassium. First approved in 1982.
Drug data last refreshed 3h ago · AI intelligence enriched 1w ago
AI summarySynthesized from FDA + DailyMed + ClinicalTrials.gov data
Thallous Chloride Tl 201 is a radioactive diagnostic agent approved in 1982 for myocardial imaging. It accumulates in viable myocardium analogous to potassium and enables visualization of regional perfusion, infarction (as 'cold' regions), and transient ischemia during stress testing. The agent is administered by injection and has become a cornerstone diagnostic tool in cardiology for identifying coronary artery disease.
LOE Approaching
This mature diagnostic product faces revenue pressure as newer imaging modalities (PET, advanced CT) gain adoption; commercial teams are likely focused on retention and cost optimization rather than growth.
Mechanism of Action
201 with no carrier added accumulates in viable myocardium in a manner analogous to that of potassium. Experiments in healthy subjects using labeled microspheres have shown that the myocardial distribution of thallous chloride Tl 201 correlates with regional perfusion. In clinical studies, Thallous…
Indications
Indication data is being enriched from DailyMed and FDA labeling. Check back soon for approved therapeutic uses.
Career Relevance
Working on Thallous Chloride Tl 201 positions you in the mature diagnostics space where career impact centers on customer relationship management, clinical education, and protecting market share against newer technologies. This is a stable but declining portfolio—better suited for specialists seeking deep expertise in cardiac imaging and healthcare economics than for those pursuing rapid advancement in high-growth franchises.
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Data Sources
- Drug label: DailyMed / FDA
- Clinical trials: ClinicalTrials.gov
- Patent data: FDA Orange Book
- Spending data: CMS Medicare
The information on this page is for informational purposes only and should not be used as a substitute for professional medical advice. Drug information is sourced from FDA, DailyMed, and other government databases. Adverse event data from FAERS does not establish causation. Always consult a healthcare professional for medical decisions.