What is Romiplostim?
The short answer
Romiplostim is a peptide joined to another molecule. In the US, you need a prescription to get Romiplostim.
- 1 source
- Status as of
- How we source
- Ellum doesn't sell peptides.
Get updates on Romiplostim
What it is
- Type
- TPO receptor agonist (peptibody)
- Also known as
- nplate
- How it works
- Stimulates platelet production.
Regulatory status
FDA-approved (Rx) How we label status
As of October 4, 2026, Romiplostim is an FDA-approved prescription drug for immune thrombocytopenia; hematopoietic syndrome of acute radiation syndrome.
- Federal (FDA)
- Approved Rx (Nplate BLA125268, 2008)
- 503A compounding
- Approved-drug component (not in any 503A category) (as of May 14, 2026)
References
Sources as of October 4, 2026