Ciprofloxacin (otic)

FDA label, Genus Lifesciences, auricular (otic), effective 2025-04-15. Full label on DailyMed

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From MedlinePlus, U.S. National Library of Medicine

Quoted from the FDA label. Product labels differ by manufacturer and change over time; confirm against the label for the product you are using.

Fluoroquinolone Antibacterial

Dosing in kidney impairment

This label has no separate kidney-impairment dosing section. Check warnings and clinical pharmacology in the full label.

Preparation and administration

2 DOSAGE AND ADMINISTRATION The contents of one single-dose container (deliverable volume: 0.25 mL) should be instilled into the affected ear twice daily (approximately 12 hours apart) for 7 days. Wash hands before use. The solution should be warmed, by holding the container in the hands for at least 1 minute, to minimize the dizziness that may result from the instillation of a cold solution into the ear canal.

The patient should lie with the affected ear upward and then the solution should be instilled. This position should be maintained for at least 1 minute to facilitate penetration of the drops into the ear. Repeat, if necessary, for the opposite ear. Discard unused portion. Contents of one single-dose container should be instilled into the affected ear twice daily (approximately 12 hours apart) for 7 days.

Drug interactions

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  • Ciprofloxacin (otic)

Supplement interactions

Dietary supplement interactions

3 noted
  • CalciumQuinolone antibiotics
    Simultaneous use of calcium supplements and quinolone antibiotics—such as ciprofloxacin (Cipro), gemifloxacin (Factive), and moxifloxacin (Avelox)—can reduce the absorption of quinolones. Taking the antibiotic 2 hours before or 2 hours after calcium supplements prevents this effect.
    Fact sheet, updated Jun 22, 2026
  • MagnesiumAntibiotics
    Magnesium can form insoluble complexes with tetracyclines, such as demeclocycline (Declomycin) and doxycycline (Vibramycin), and with quinolone antibiotics, such as ciprofloxacin (Cipro) and levofloxacin (Levaquin). These antibiotics should be taken at least 2 hours before or 4 to 6 hours after a magnesium-containing supplement.
    Fact sheet, updated Jan 6, 2026
  • ZincAntibiotics
    Both quinolone antibiotics (such as Cipro) and tetracycline antibiotics (such as Achromycin and Sumycin) might interact with zinc in the gastrointestinal tract, which could inhibit the absorption of both zinc and the antibiotic if they are taken at the same time. Taking the antibiotic at least 2 hours before or 4 to 6 hours after the zinc supplement minimizes this interaction.
    Fact sheet, updated Jan 6, 2026

Contraindications

Ciprofloxacin otic solution, 0.2% is contraindicated in persons with a history of hypersensitivity to ciprofloxacin. History of hypersensitivity to ciprofloxacin. ( 3 )

Safety data

Reported adverse events (FAERS)

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Source: FDA Adverse Event Reporting System via openFDA

Liver injury (LiverTox)

A

Likelihood score A: Well established but uncommon cause of clinically apparent liver injury.

Ciprofloxacin is a second generation fluoroquinolone antibiotic that is widely used in the therapy of mild-to-moderate urinary and respiratory tract infections caused by susceptible organisms. Ciprofloxacin has been linked to rare but convincing instances of liver injury that can be severe and even fatal.

ABCDEA: well known cause; E: unlikely cause. [HD]: high doses only.

Source: LiverTox: Ciprofloxacin (NIDDK, public domain)Chapter updated May 9, 2024

Pregnancy and lactation

Pregnancy

8.1 Pregnancy Pregnancy Category C. Reproduction studies have been performed in rats and mice using oral doses of up to 100 mg/kg and intravenous (IV) doses up to 30 mg/kg and have revealed no evidence of harm to the fetus as a result of ciprofloxacin. In rabbits, ciprofloxacin (30 and 100 mg/kg orally) produced gastrointestinal disturbances resulting in maternal weight loss and an increased incidence of abortion, but no teratogenicity was observed at either dose. After intravenous administration of doses up to 20 mg/kg, no maternal toxicity was produced in the rabbit, and no embryotoxicity or teratogenicity was observed.

Animal reproduction studies have not been conducted with ciprofloxacin otic solution, 0.2%. No adequate and well controlled studies have been performed in pregnant women. Caution should be exercised when ciprofloxacin otic solution, 0.2% is used by a pregnant woman.

Lactation

8.3 Nursing Mothers Ciprofloxacin is excreted in human milk with systemic use. It is not known whether ciprofloxacin is excreted in human milk following otic use. Because of the potential for serious adverse reactions in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Breastfeeding (LactMed)

Amounts of ciprofloxacin in breastmilk are low. Fluoroquinolones such as ciprofloxacin have traditionally not been used in infants because of concern about adverse effects on the infants' developing joints. However, studies indicate little risk. The calcium in milk might decrease absorption of the small amounts of fluoroquinolones in milk, but insufficient data exist to prove or disprove this assertion. Use of ciprofloxacin is acceptable in nursing mothers with monitoring of the infant for possible effects on the gastrointestinal flora, such as diarrhea or candidiasis (thrush, diaper rash). Avoiding breastfeeding for 3 to 4 hours after a dose should decrease the exposure of the infant to ciprofloxacin in breastmilk. Maternal use of an ear drop or eye drop that contains ciprofloxacin presents negligible risk for the nursing infant.

Alternatives LactMed suggests considering:
Source: LactMed: Ciprofloxacin (NICHD, public domain)Revised Aug 15, 2024

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