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Prescription medicine

Technetium tc 99m red blood cells Brand names: Ultratag

Technetium tc 99m red blood cells (Ultratag) is a prescription medicine. No generic is listed in FDA's NDC Directory.

  • No generic listed

Check it at the source: the technetium tc 99m red blood cells FDA label on DailyMed (effective July 2, 2025); every technetium tc 99m red blood cells label on DailyMed.

Highlights of the record

FDA label of July 2, 2025; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026

Used for

From the label: indications and usage

Technetium Tc 99m red blood cells are used for blood pool imaging, including cardiac first pass and gated equilibrium imaging and for detection of sites of gastrointestinal bleeding.

Forms and strengths

Kit.

On the market

Generic approvals
No generic approved
Labelers listed (NDC)
1 of which 0 under generic applications, 1 under brand applications, repackagers included

Supply and safety

Pharmacy cost (NADAC)
Not in the survey
Shortage (FDA)
No current entry
Recalls by its makers (FDA)
No recall recorded
FAERS reports
111 through July 30, 2026

What is technetium tc 99m red blood cells used for?

From the label: indications and usage

Technetium Tc 99m red blood cells are used for blood pool imaging, including cardiac first pass and gated equilibrium imaging and for detection of sites of gastrointestinal bleeding.

Source: FDA drug label (Ultratag RBC), Curium US LLC, effective July 2, 2025 (SPL set 9f999b75-8a66-40bf-9352-478850b41225), via openFDA; the full label on DailyMed

Is there a generic for technetium tc 99m red blood cells (Ultratag)?

No generic technetium tc 99m red blood cells is approved (Drugs@FDA, October 8, 2026).

Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)

What do FAERS reports show for technetium tc 99m red blood cells?

The FDA Adverse Event Reporting System holds 111 reports that list technetium tc 99m red blood cells among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 3 are coded as a death and 0 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

The most reported reactions

  • Drug Ineffective (a use or a product term, not a reaction)75
  • Radioisotope Scan Abnormal15
  • Pruritus7
  • Urticaria6
  • Radiation Overdose (a use or a product term, not a reaction)5
  • Multiple Gated Acquisition Scan Abnormal4
  • Dizziness3
  • Drug Monitoring Procedure Not Performed3

Side effects: the label's list and every FAERS reaction

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026

What next?

Technetium tc 99m red blood cells side effects
the label's list beside FAERS reports
Check an interaction
what two or more labels say about each other