Medication·Interactions & depletion·Reviewed June 9, 2026
Ciprofloxacin interactions.
Ciprofloxacin has 19 documented interactions in the NutriStack database, including 1 flagged to avoid or as a serious conflict. Prolonged use is also associated with lower Magnesium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Ciprofloxacin at a glance.
A quick, data-grounded summary. The full tables are below.
Ciprofloxacin has 19 documented interactions in the NutriStack database, including 1 flagged to avoid or as a serious conflict. Prolonged use is also associated with lower Magnesium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Substances that interact with ciprofloxacin.
Every supplement and medication in the NutriStack database with a documented interaction with this drug, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Amiodarone | Contraindicated | Both amiodarone and fluoroquinolones independently prolong the QT interval. Concurrent use creates additive QT prolongation risk, potentially... details → |
| Green Tea Extract | Caution | Ciprofloxacin inhibits CYP1A2, the same enzyme that metabolizes caffeine present in green tea extract. This inhibition can roughly double caffeine... details → |
| Aluminum/Magnesium Hydroxide | Timing Sensitive | Aluminum and magnesium in antacids form insoluble chelate complexes with ciprofloxacin in the gut, dramatically reducing antibiotic absorption.... details → |
| Calcium | Timing Sensitive | Calcium chelates ciprofloxacin in the GI tract, forming insoluble calcium-quinolone complexes that can reduce ciprofloxacin absorption by up to 90%.... details → |
| Calcium Carbonate | Timing Sensitive | Calcium carbonate, whether taken as an antacid or calcium supplement, binds ciprofloxacin in the gut and reduces its absorption by 30 to 50 percent.... details → |
| Iron | Timing Sensitive | Iron strongly chelates ciprofloxacin, forming insoluble iron-quinolone complexes that dramatically reduce ciprofloxacin absorption and efficacy.... details → |
| Iron Bisglycinate | Timing Sensitive | Iron, including chelated forms like iron bisglycinate, binds ciprofloxacin in the gastrointestinal tract and forms insoluble complexes that prevent... details → |
| Magnesium Citrate | Timing Sensitive | Magnesium citrate, like other magnesium salts, chelates ciprofloxacin in the gut and reduces its absorption. Single-dose studies have shown... details → |
| Magnesium Glycinate | Timing Sensitive | Magnesium chelates ciprofloxacin, forming insoluble complexes that substantially reduce antibiotic absorption. Magnesium-containing antacids are... details → |
| Magnesium L-Threonate | Timing Sensitive | All forms of supplemental magnesium, including magnesium L-threonate used for cognitive support, chelate ciprofloxacin in the gut and reduce its... details → |
| Magnesium Malate | Timing Sensitive | Magnesium malate, like other magnesium salts, releases Mg2+ in the gut that chelates ciprofloxacin and reduces its absorption. The bioavailability... details → |
| Magnesium Taurate | Timing Sensitive | Magnesium taurate dissociates in the gut to release free Mg2+, which chelates ciprofloxacin and dramatically reduces its absorption. Even modest... details → |
| Manganese | Timing Sensitive | Manganese can form chelate complexes with fluoroquinolone antibiotics. An in vitro study using a manganese-containing gastrointestinal diagnostic... details → |
| Zinc | Timing Sensitive | Zinc chelates ciprofloxacin in the GI tract, reducing absorption and potentially causing treatment failure. Zinc-containing multivitamins have been... details → |
| Zinc Carnosine | Timing Sensitive | Zinc carnosine releases Zn2+ in the gut that chelates ciprofloxacin and reduces its absorption. The bioavailability reduction is sufficient to... details → |
| Zinc Picolinate | Timing Sensitive | Zinc, including chelated forms like zinc picolinate, binds ciprofloxacin in the gut and reduces its absorption by approximately 24 to 56 percent... details → |
| Lactobacillus Rhamnosus | Synergy | Lactobacillus rhamnosus GG is one of the most studied probiotic strains for preventing antibiotic-associated diarrhea, including during... details → |
| Probiotics | Synergy | Probiotic supplementation during ciprofloxacin therapy reduces the incidence of antibiotic-associated diarrhea by restoring colonization resistance... details → |
| Saccharomyces Boulardii | Synergy | Saccharomyces boulardii is a yeast probiotic with strong evidence for preventing antibiotic-associated diarrhea and C. difficile infection. Because... details → |
What ciprofloxacin can deplete.
Nutrients this medication is associated with lowering over time, with the mechanism, a suggested replacement where one applies, and the biomarker to monitor. Discuss any replacement with your prescriber first.
| Nutrient | Severity | How it happens | Replace with | Monitor |
|---|---|---|---|---|
| Magnesium | Moderate | Fluoroquinolones can increase renal magnesium wasting and can also bind supplemental magnesium in the gut during active treatment. | Magnesium Glycinate | Serum magnesium or RBC magnesium |
The full ciprofloxacin profile.
Uses, typical dosing, side effects, and the cited evidence for this medication.
Common ciprofloxacin questions.
Quick answers drawn from the tables above.
What interacts with Ciprofloxacin?
In the NutriStack database, Ciprofloxacin has 19 documented interactions. The most notable include Amiodarone, Green Tea Extract, Aluminum/Magnesium Hydroxide, Calcium, and Calcium Carbonate. Check any specific combination before taking it and confirm with your prescriber.
Which substances should I avoid with Ciprofloxacin?
Ciprofloxacin is flagged against 1 substance in the database, including Amiodarone. These pairings carry a higher risk and should be reviewed with a clinician before combining.
Does Ciprofloxacin deplete any nutrients?
Ciprofloxacin is associated with lowering Magnesium with prolonged use. Useful biomarkers to monitor include Serum magnesium or RBC magnesium. Ask your prescriber before adding any replacement supplement.
Is it safe to take Amiodarone with Ciprofloxacin?
NutriStack classifies the Amiodarone and Ciprofloxacin pairing as contraindicated: Both amiodarone and fluoroquinolones independently prolong the QT interval. Concurrent use creates additive QT prolongation risk, potentially leading to torsades de... Avoid concurrent use if possible. If unavoidable, perform baseline ECG, monitor QTc closely, and discontinue if QTc exceeds 500 ms. Ensure... Always confirm with your prescriber.
Check your whole stack
See how ciprofloxacin fits your supplements.
NutriStack screens your full routine for interactions and depletions, and updates the moment you change it.