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What the FDA labels say about taking them together

Cladribine and dipyridamole

Cladribine's FDA label of May 27, 2026 names dipyridamole in its drug interactions section; the dipyridamole label PlainMeds reads does not name cladribine. The cladribine label: “Prevention or Management; Avoid co-administration of potent ENT1, CNT3, or BCRP transporter inhibitors during the 4 to 5 day MAVENCLAD treatment cycles. …”

Check it at the source: the cladribine FDA label on DailyMed (effective May 27, 2026, EMD Serono, Inc.); the dipyridamole FDA label on DailyMed (effective September 16, 2023, Zydus Pharmaceuticals USA Inc.).

What does the cladribine label say about dipyridamole?

Cladribine label, drug interactions

Prevention or Management; Avoid co-administration of potent ENT1, CNT3, or BCRP transporter inhibitors (e.g., ritonavir, eltrombopag, curcumin, cyclosporine, dilazep, nifedipine, nimodipine, cilostazol, sulindac, dipyridamole, or reserpine) during the 4 to 5 day MAVENCLAD treatment cycles. If this is not possible, consider selection of alternative concomitant drugs with no or minimal ENT1, CNT3, or BCRP transporter inhibiting properties. If this is not possible, dose reduction to the minimum mandatory dose of drugs containing these compounds, separation in the timing of administration, and careful patient monitoring is recommended.

Source: FDA drug label (Mavenclad), EMD Serono, Inc., effective May 27, 2026 (SPL set 9c75e30a-a410-40f1-b653-04d532bd9144), via openFDA; the full label on DailyMed

What does the dipyridamole label say about cladribine?

Dipyridamole's label (effective September 16, 2023) does not name cladribine in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (Dipyridamole), Zydus Pharmaceuticals USA Inc., effective September 16, 2023 (SPL set 004bada0-dbf7-4a94-8792-6833d7eeda2b), 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

6Cladribine generic labelers
8Dipyridamole generic labelers
CladribineDipyridamole
Labeled forMultiple sclerosis, Leukemia, lymphoma and myeloman/a
Boxed warningYesNo
Pharmacy cost (NADAC)n/a$0.236 per tablet 75 mg tablet
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?