Does Iron Fortified Vitamins Interact with Cefdinir?
CDI records a moderate classification for Iron Fortified Vitamins and Cefdinir. The stored summary is: Vitamins fortified with 10 mg elemental iron reduce cefdinir absorption extent by 31%. If required, cefdinir should be taken at least 2 hours before or after the supplement. The mechanism involves formation of nonabsorbable complex between cefdinir and iron in gastrointestinal tract. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.
- Severity
- Moderate
- Cefdinir Class
- Cephalosporin Antibacterial
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
Recorded Mechanism
Formation of nonabsorbable complex between cefdinir and iron in gastrointestinal tract
What To Tell Your Doctor or Pharmacist
If you are taking Iron Fortified Vitamins and your doctor is considering prescribing Cefdinir (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider