Thallous Chloride Tl 201 (Intravenous Route)

Name: Thallous Chloride Tl 201 (Intravenous Route)


Thallous chloride Tl 201 injection is used in adults to help diagnose heart disease (eg, coronary artery disease, heart attack). It is used in certain procedures called planar scintigraphy or single-photon emission computed tomography (SPECT). This medicine shows how much blood is getting to your heart muscle when you are resting or exercising (stressed). Thallous chloride Tl 201 belongs to the group of medicines called radiopharmaceuticals (radioactive agents).

This medicine is also used to help diagnose parathyroid problems.

This medicine is to be given only by or under the direct supervision of a doctor with specialized training in nuclear medicine.

This product is available in the following dosage forms:

  • Solution


Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of thallous chloride Tl 201 injection in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require caution and an adjustment in the dose for patients receiving thallous chloride Tl 201 injection.


There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Other Interactions

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.