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Can I take Calcium and Ciprofloxacin together?

Guide för läkemedelsinteraktioner

Taking calcium at the same time as ciprofloxacin can significantly reduce the amount of the antibiotic that gets into your bloodstream. This means the medicine may not work properly to clear your infection.

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Varför detta händer

Calcium binds to the ciprofloxacin in your stomach or gut, forming a 'complex' that is too large for your body to absorb. Instead of entering your blood, the medicine simply passes through your system.

Do not take calcium supplements, antacids containing calcium, or large amounts of dairy products at the same time as ciprofloxacin. You should take ciprofloxacin at least 2 hours before or 6 hours after taking any calcium-containing products.

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Drug interaction (spacing)

Do not take calcium supplements at the same time as ciprofloxacin. Calcium can stop ciprofloxacin from being absorbed properly. Take ciprofloxacin at least 2 hours before or 6 hours after any calcium-containing products.

Tendon damage

Stop taking ciprofloxacin and seek immediate medical help if you experience any pain, swelling, or inflammation in your tendons (such as the ankle or calf), as this medicine increases the risk of tendon rupture.

Sun sensitivity

Ciprofloxacin makes your skin much more sensitive to sunlight. Avoid bright sunlight and do not use sunbeds, as you may burn very severely.

Dairy products (milk, cheese, yoghurt) and calcium-fortified juices

Do not take ciprofloxacin at the same time as dairy products or calcium-fortified drinks. These can significantly reduce the amount of medicine absorbed by your body, making it less effective. You should take ciprofloxacin at least 2 hours before or 6 hours after consuming these items. (Note: It is fine to eat these as part of a main meal, but avoid them as a standalone snack or drink when taking your dose).

Caffeine (coffee, tea, cola, energy drinks)

Ciprofloxacin can stop your body from breaking down caffeine. This can lead to a build-up of caffeine in your system, making you feel shaky, anxious, or causing a racing heart and insomnia. It is best to limit your caffeine intake while taking this antibiotic.

Multivitamins and minerals (Iron, Magnesium, Zinc, Aluminium)

Supplements or fortified foods containing these minerals can stop these antibiotics from working. Take your medicine at least 2 hours before or 4-6 hours after any supplements or antacids.

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Taking multiple medicines? Our Interaktionskontroll för läkemedel helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Ansvarsfriskrivning

Denna information är endast avsedd för allmän utbildning och bör inte användas som en ersättning för professionell medicinsk rådgivning. Rådfråga alltid din läkare, apotekare eller annan kvalificerad vårdpersonal innan du fattar beslut om dina mediciner. Individuella omständigheter kan variera, och endast en vårdpersonal som känner till din medicinska historia kan ge personlig vägledning.

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Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.

  • 25 jan 2026 | Ursprungligen publicerad
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