What the FDA labels say about taking them together
Cytarabine and venetoclax
Venetoclax's FDA label of May 20, 2026 names cytarabine in its warnings and precautions section; the cytarabine label PlainMeds reads does not name venetoclax. The venetoclax label: “… renal failure in patients who received VENCLEXTA in combination with low-dose cytarabine (VIALE-C).”
Check it at the source: the cytarabine FDA label on DailyMed (effective April 7, 2025, Hospira, Inc.); the venetoclax FDA label on DailyMed (effective May 20, 2026, AbbVie Inc.).
What does the cytarabine label say about venetoclax?
Cytarabine's label (effective April 7, 2025) does not name venetoclax in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Cytarabine), Hospira, Inc., effective April 7, 2025 (SPL set e3a8c0e9-19ed-49b7-8464-11e8806f47fd), via openFDA; the full label on DailyMed
What does the venetoclax label say about cytarabine?
Venetoclax label, warnings and precautionsIn patients with AML who followed a 4-day ramp-up dosing schedule and the TLS prophylaxis and monitoring measures, the rate of TLS was 5.6% and included deaths and renal failure in patients who received VENCLEXTA in combination with low-dose cytarabine (VIALE-C) [see Adverse Reactions ( 6.1 )].
Source: FDA drug label (Venclexta), AbbVie Inc., effective May 20, 2026 (SPL set b118a40d-6b56-cee3-10f6-ded821a97018), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Cytarabine | Venetoclax | |
|---|---|---|
| Labeled for | Leukemia, lymphoma and myeloma | Leukemia, lymphoma and myeloma |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | n/a | n/a |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once