What the FDA labels say about taking them together
Doxycycline and ferric maltol
Ferric maltol's FDA label of January 2, 2026 names doxycycline in its drug interactions section; the doxycycline labels PlainMeds reads (4) do not name ferric maltol. The ferric maltol label: “Oral Medications Concomitant use of ACCRUFER may decrease the bioavailability of some drugs, including mycophenolate, ethinyl estradiol, ciprofloxacin and doxycycline.”
Check it at the source: the doxycycline FDA label on DailyMed (effective July 25, 2025, Chartwell RX, LLC.); the ferric maltol FDA label on DailyMed (effective January 2, 2026, Shield TX (UK) Ltd).
What does the doxycycline label say about ferric maltol?
Doxycycline's label (effective July 25, 2025) and its 3 other brand-application labels do not name ferric maltol in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Doxycycline Monohydrate), Chartwell RX, LLC., effective July 25, 2025 (SPL set 02aa8731-d40f-43d8-8b63-a79a0503f8db), via openFDA; the full label on DailyMed
What does the ferric maltol label say about doxycycline?
Ferric maltol label, drug interactionsOral Medications Concomitant use of ACCRUFER may decrease the bioavailability of some drugs, including mycophenolate, ethinyl estradiol, ciprofloxacin and doxycycline [see Clinical Pharmacology ( 12.3 )].
Source: FDA drug label (ACCRUFER), Shield TX (UK) Ltd, effective January 2, 2026 (SPL set 367ac157-2d25-4f34-99ce-b126e0f03851), 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
| Doxycycline | Ferric maltol | |
|---|---|---|
| Labeled for | Urinary tract infections, Bacterial infections, Acne | n/a |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $0.118 per tablet 100 mg tablet | $10.09 per capsule 30 mg capsule |
| Shortage now | A presentation being discontinued | 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