What the FDA labels say about taking them together
Colchicine and ketoconazole
Colchicine's FDA label (Lodoco) of August 13, 2026 names ketoconazole in its drug interactions section; the ketoconazole label PlainMeds reads does not name colchicine. The colchicine label: “Significant increases in colchicine plasma levels.”
Check it at the source: the colchicine FDA label on DailyMed (effective July 22, 2025, Aurobindo Pharma Limited); the ketoconazole FDA label on DailyMed (effective January 28, 2026, E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC).
What does the colchicine label say about ketoconazole?
Lodoco label (AGEPHA Pharma USA, LLC, August 13, 2026), drug interactionsDrug class: Strong CYP3A4 Inhibitors † atazanavir clarithromycin darunavir/ritonavir indinavir itraconazole ketoconazole lopinavir/ritonavir nefazodone nelfinavir ritonavir saquinavir telithromycin tipranavir/ritonavir; Outcome/effect: Significant increases in colchicine plasma levels [see Clinical Pharmacology (12.3)].; Clinical comment: Concomitant use of LODOCO with strong CYP3A4 inhibitors is contraindicated [see Contraindications (4)].
Gloperba label (Scilex Pharmaceuticals Inc., November 1, 2024), drug interactionsThe concomitant use of GLOPERBA and CYP3A4 inhibitors (e.g., clarithromycin, ketoconazole, grapefruit juice, erythromycin, verapamil, etc.) should be avoided due to the potential for serious and life threatening toxicity [see Warnings and Precautions (5.3) and Clinical Pharmacology (12.3) ].
Source: FDA drug label (Lodoco, NDA215727), AGEPHA Pharma USA, LLC, effective August 13, 2026 (SPL set ff06d68f-d65f-d097-e053-6294a90a7e5f), via openFDA
Source: FDA drug label (Gloperba, NDA210942), Scilex Pharmaceuticals Inc., effective November 1, 2024 (SPL set 467cd83f-d695-4040-9434-10e80b4271da), via openFDA
Source: FDA drug label (Colchicine, NDA204820), Hikma Pharmaceuticals USA Inc., effective May 22, 2024 (SPL set ee1583ac-c308-4beb-b602-9ecac4977026), via openFDA
Source: FDA drug label (Colchicine), Aurobindo Pharma Limited, effective July 22, 2025 (SPL set dd93a40f-92ab-47ac-9083-b8a7a0b18ad6), via openFDA; the full label on DailyMed
What does the ketoconazole label say about colchicine?
Ketoconazole's label (effective January 28, 2026) does not name colchicine in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (ketoconazole), E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC, effective January 28, 2026 (SPL set cad7c647-34a9-4e4e-83b3-8d78e58f588f), 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
| Colchicine | Ketoconazole | |
|---|---|---|
| Labeled for | Gout | Fungal infections |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $0.122 per tablet 0.6 mg tablet | $0.249 per gram 2% cream |
| 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