Lenalidomide REMS Fill Window
Whether lenalidomide may be dispensed under its REMS, and until when.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Patient risk category
- Female of reproductive potential
- Last pregnancy test date, or the authorization issue date for other patients
- 2026-09-20
- A subsequent prescription
- Yes
- Days of therapy remaining on the current prescription
- 5
- Therapy start date
- 2026-06-01
- Menstrual cycles
- Irregular cycles
- Date to check
- 2026-09-26
Result: A fill is allowed on September 26, 2026; the authorization is good through September 27, 2026.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Patient risk category
- Last pregnancy test date, or the authorization issue date for other patients (YYYY-MM-DD)
- A subsequent prescription
- Days of therapy remaining on the current prescription
- Therapy start date (YYYY-MM-DD)
- Menstrual cycles
- Date to check (YYYY-MM-DD; blank for today)
How this is calculated
Citation
Lenalidomide REMS Pharmacy Guide (12/22): authorization valid 7 days from the last pregnancy test (females of reproductive potential) or 30 days from issue; confirmation number valid 24 hours; at most 28 days, no refills; refill with 7 or fewer days left. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.