Supplement stacks / Ciprofloxacin + Iron

Can You Take Ciprofloxacin with Iron?

Ciprofloxacin and Iron: one interaction flagged, scored 4/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

Safety at a glance

Medium risk
Safety score4/10

This score comes from an AI-written analysis of the pair. Our interaction rules check it and can only make it stricter, never milder. Informational only: it can't account for your medications, conditions, or genetics.

What the AI-written analysis says

Taking ciprofloxacin with iron can significantly reduce the absorption of ciprofloxacin, potentially leading to decreased effectiveness of the antibiotic. It is recommended to separate the intake of these substances by at least 2 hours to mitigate this interaction.

Ciprofloxacin is a prescription medication. This page describes publicly documented interactions — it can't see your dose, your other prescriptions, or your labs. Discuss any supplement with the prescriber or pharmacist who manages this medication before combining.

Known interactions

Ciprofloxacin × Iron
high risk

Iron can bind to ciprofloxacin in the gastrointestinal tract, reducing its absorption and effectiveness. It is advised to take ciprofloxacin at least 2 hours before or 6 hours after iron supplements.

Ciprofloxacin

From the AI-written analysis.

Generally well-tolerated but can cause gastrointestinal disturbances and other side effects. Consult a healthcare provider for specific concerns.

Typical dosage: As prescribed or as directed on the label

Common side effects:
  • Nausea
  • Diarrhea
  • Dizziness
  • Headache
Warnings:
  • May cause tendon damage; avoid in patients with a history of tendon disorders.
  • Use caution in patients with renal impairment.

Iron

From the AI-written analysis.

Generally safe when taken as directed; excessive intake can lead to toxicity. Consult a healthcare provider for specific concerns.

Typical dosage: Typically 18 mg to 65 mg per day, depending on the formulation.

Common side effects:
  • Constipation
  • Nausea
  • Stomach upset
  • Dark stools
Warnings:
  • Iron supplements should not be taken in excess; monitor for signs of overdose.

Timing

Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it.

Watch out for

  • Calcium, iron, magnesium, zinc, antacids, and multivitamins bind these antibiotics (fluoroquinolones and tetracyclines) and reduce how much is absorbed, which can make the antibiotic less effective. Separate them by at least 2-4 hours — take the antibiotic first, then the mineral or multivitamin later.
  • Take ciprofloxacin at least 2 hours before or 6 hours after iron supplements to avoid interaction.

Frequently asked questions

Can you take Ciprofloxacin and Iron together?

Ciprofloxacin and Iron: one interaction flagged, scored 4/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

What score does the Ciprofloxacin and Iron combination get?

The Ciprofloxacin and Iron combination is scored 4/10 (medium risk). The score comes from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice. Always confirm with a healthcare professional.

When should you take Ciprofloxacin and Iron?

Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it.

What should you watch out for when combining Ciprofloxacin and Iron?

Calcium, iron, magnesium, zinc, antacids, and multivitamins bind these antibiotics (fluoroquinolones and tetracyclines) and reduce how much is absorbed, which can make the antibiotic less effective. Separate them by at least 2-4 hours — take the antibiotic first, then the mineral or multivitamin later. Take ciprofloxacin at least 2 hours before or 6 hours after iron supplements to avoid interaction.

Check your full stack

Taking more than these two? Add everything you take, medicines included, to your list. We check each supplement on your list against the rest of it, and name anything we could not check. Free, and you don’t need an account.

Analyze my stack

What your DNA adds

Some genes in a raw 23andMe or AncestryDNA file are linked to how the body handles nutrients. The DNA report says what yours are linked to and, where there is one, which blood test would tell you more.

See the DNA report

AI-written analysis generated August 28, 2026, checked by our interaction rules · How our analysis works