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What the FDA labels say about taking them together

Caffeine and enasidenib

Enasidenib's FDA label of January 16, 2025 names caffeine in its drug interactions section; the caffeine labels PlainMeds reads (2) do not name enasidenib. The enasidenib label: “Consider reducing the frequency of caffeine intake from various food and beverages in a 24 hour period while taking IDHIFA because IDHIFA may increase the effect of caffeine in patients who are sensitive to it.”

Check it at the source: the caffeine FDA label on DailyMed (effective July 29, 2026, Sagent Pharmaceuticals); the enasidenib FDA label on DailyMed (effective January 16, 2025, Celgene Corporation).

What does the caffeine label say about enasidenib?

Caffeine's label (effective July 29, 2026) and its 1 other brand-application label do not name enasidenib in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (caffeine citrate), Sagent Pharmaceuticals, effective July 29, 2026 (SPL set 5f38c395-0093-4afd-89ec-f96e5dc0934a), via openFDA; the full label on DailyMed

What does the enasidenib label say about caffeine?

Enasidenib label, drug interactions

Consider reducing the frequency of caffeine intake from various food and beverages in a 24 hour period while taking IDHIFA because IDHIFA may increase the effect of caffeine in patients who are sensitive to it.

Source: FDA drug label (Idhifa), NDA209606 (Bristol Myers Squibb), as published by Celgene Corporation, effective January 16, 2025 (SPL set a5b4cdf0-3fa8-4c6c-80f6-8d8a00e3a5b6), 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

7Caffeine generic labelers
0Enasidenib generic labelers
CaffeineEnasidenib
Labeled forn/aLeukemia, lymphoma and myeloma
Boxed warningNoYes
Pharmacy cost (NADAC)$0.083 per tablet 200 mg tabletn/a
Shortage nowNo current entryNo 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?