Selected Oral Quinolones/Selected Oral Cations
This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.
Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
Your medicine contains aluminum, iron, lanthanum, magnesium, and/or zinc, which are cations that may bind to your antibiotic in your digestive tract. This prevents your body from absorbing the antibiotic.
What might happen:
The blood levels of your antibiotic may be decreased, which will decrease the effectiveness in treating your infection.
What you should do about this interaction:
You should time when you take your antibiotic and your other medicine so that you do not take: ---gatifloxacin for at least 4 hours before oral cations. ---gemifloxacin for at least 2 hours before or 3 ours after oral cations. ---lomefloxacin for at least 2 hours before or 4 hours after oral cations. ---moxifloxacin for at least 4 hours before or 8 hours after oral cations. ---trovafloxacin for at least 2 hours before or after oral cations.If you are taking lanthanum, your doctor may tell you to follow the above timing instructions or different ones, or your doctor may tell you to skip doses that you would normally take at the same time as your antibiotic.If you are not sure which antibiotic you are on, if you do not see your antibiotic listed, or if you have questions about the timing of doses of your medicine, contact your healthcare professionals (e.g. doctor or pharmacist). They may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
1.Tequin (gatifloxacin) US prescribing information. Bristol-Myers Squibb Company January, 2006.
2.Factive (gemifloxacin mesylate) US prescribing information. Oscient Pharmaceuticals October, 2011.
3.Maxaquin (lomefloxacin hydrochloride) US prescribing information. Pfizer Inc. January, 2005.
4.Avelox (moxifloxacin hydrochloride) US prescribing information. Bayer Pharmaceuticals Corporation August, 2012.
5.Trovan (trovafloxacin mesylate) US prescribing information. Roerig April, 2000.
6.Fosrenol (lanthanum carbonate) US prescribing information. Shire US Inc. September, 2011.
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