Last reviewed 2026-04-20 · How we verify

99Mo (Molybdenum Mo-99)

unknown active

99Mo (generic name: Molybdenum Mo-99) is a drug. It is currently in unknown development.

99Mo is converted into Tc-99m through a nuclear reaction, which is then used to create diagnostic imaging agents.

99Mo (Molybdenum Mo-99) is a radioactive isotope used in the production of technetium-99m (Tc-99m), a radiopharmaceutical used in medical imaging. It is not a drug itself but a precursor to Tc-99m, which is used in various diagnostic procedures. The exact target and indications for 99Mo are unknown, but its commercial status is that of a patented product. Key safety considerations include proper handling and storage due to its radioactive nature. Further information on its use and safety is limited.

At a glance

Generic name	Molybdenum Mo-99
Therapeutic area	Bone
Phase	unknown

Mechanism of action

Imagine a special kind of camera that uses a tiny amount of radioactive material to take pictures of the inside of your body. 99Mo is the starting material that gets converted into this radioactive material, which is then used to create detailed images of your internal organs and tissues.

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

Key clinical trials

A Cross-over Comparison of the Diagnostic Accuracy of Technetium (99mTc) Medronate Injection Prepared With 99mTc Derived From Neutron-activation Produced 99Mo Versus the Current Reference Standard of (Phase 3)

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

Source	Used for
ClinicalTrials.gov	Trial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

99Mo CI brief — competitive landscape report
99Mo updates RSS · CI watch RSS
portfolio CI

Frequently asked questions about 99Mo

What is 99Mo?

99Mo (Molybdenum Mo-99) is a pharmaceutical drug.

How does 99Mo work?

99Mo is converted into Tc-99m through a nuclear reaction, which is then used to create diagnostic imaging agents.

What is the generic name of 99Mo?

Molybdenum Mo-99 is the generic (nonproprietary) name of 99Mo.

What development phase is 99Mo in?

99Mo is in unknown.

Manufacturer: — full pipeline
Therapeutic area: All drugs in Bone

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing