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Drug interactions

Buprenorphine subdermal implant + Ciprofloxacin

Severity: Moderate

Buprenorphine subdermal implant and Ciprofloxacin: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Both agents can prolong QTc, so the combination may modestly add to the risk of torsades de pointes. The risk is higher with electrolyte abnormalities, structural heart disease or other QT-prolonging drugs. The implant gives low and steady buprenorphine levels, so the added effect is probably small.

What this interaction means in plain words

Buprenorphine subdermal implant and Ciprofloxacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Evidence level: Low

Why it happens

Additive QT prolongation through cardiac potassium channel effects.

What to do

Obtain an ECG and correct potassium and magnesium in at-risk patients. Choose a different antibiotic if other QT risk factors exist.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Buprenorphine subdermal implant with Ciprofloxacin?

MediHelp rates the interaction as moderate. Buprenorphine subdermal implant and Ciprofloxacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both agents can prolong QTc, so the combination may modestly add to the risk of torsades de pointes. The risk is higher with electrolyte abnormalities, structural heart disease or other QT-prolonging drugs. The implant gives low and steady buprenorphine levels, so the added effect is probably small.

How serious is the interaction between Buprenorphine subdermal implant and Ciprofloxacin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain an ECG and correct potassium and magnesium in at-risk patients. Choose a different antibiotic if other QT risk factors exist.

What other medicines interact with Ciprofloxacin?

MediHelp also lists interactions of Ciprofloxacin with, for example, Agomelatine, Fezolinetant, Thioridazine. The full list is on the Ciprofloxacin page.

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