What the FDA labels say about taking them together
Cyclosporine and doxorubicin
Cyclosporine's FDA label of August 10, 2026 names doxorubicin in its drug interactions section; the doxorubicin labels PlainMeds reads (2) do not name cyclosporine. The cyclosporine label: “Anthracycline Antibiotics High doses of cyclosporine may increase the exposure to anthracycline antibiotics in cancer patients.”
Check it at the source: the cyclosporine FDA label on DailyMed (effective August 10, 2026, Novartis Pharmaceuticals Corporation); the doxorubicin FDA label on DailyMed (effective May 5, 2026, Pfizer Laboratories Div Pfizer Inc).
What does the cyclosporine label say about doxorubicin?
Cyclosporine label, drug interactionsAnthracycline Antibiotics High doses of cyclosporine (e.g., at starting intravenous dose of 16 mg/kg/day) may increase the exposure to anthracycline antibiotics (e.g., doxorubicin, mitoxantrone, daunorubicin) in cancer patients.
Source: FDA drug label (Sandimmune, NDA050573), Novartis Pharmaceuticals Corporation, effective July 10, 2026 (SPL set 5e5926a7-1de0-4b54-a5c0-286b6200ff82), via openFDA
Source: FDA drug label (Neoral), Novartis Pharmaceuticals Corporation, effective August 10, 2026 (SPL set 94461af3-11f1-4670-95d4-2965b9538ae3), via openFDA; the full label on DailyMed
What does the doxorubicin label say about cyclosporine?
Doxorubicin's label (effective May 5, 2026) and its 1 other brand-application label do not name cyclosporine in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Doxorubicin Hydrochloride), Pfizer Laboratories Div Pfizer Inc, effective May 5, 2026 (SPL set 1fd148fb-0fbc-4b6f-b790-23546fb46a71), 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
| Cyclosporine | Doxorubicin | |
|---|---|---|
| Labeled for | Organ transplant rejection, Rheumatoid arthritis | Leukemia, lymphoma and myeloma, Breast cancer |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $1.04 per unit 0.05% eye emulsion | 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