Drug interactions
Buprenorphine long-acting + Loperamide
Severity: Moderate
Buprenorphine long-acting and Loperamide: 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 can prolong the QT interval and the combination may increase arrhythmia risk, mainly with excessive loperamide doses. Opioid constipating effects add together.
What this interaction means in plain words
Buprenorphine long-acting and Loperamide 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.
Why it happens
Additive QT prolongation and additive opioid receptor effects.
What to do
Keep loperamide to labeled doses and obtain an ECG in patients with cardiac risk factors. Monitor for constipation.
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?
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Other interactions of Loperamide
Frequently asked questions
Can I take Buprenorphine long-acting with Loperamide?
MediHelp rates the interaction as moderate. Buprenorphine long-acting and Loperamide 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 can prolong the QT interval and the combination may increase arrhythmia risk, mainly with excessive loperamide doses. Opioid constipating effects add together.
How serious is the interaction between Buprenorphine long-acting and Loperamide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Keep loperamide to labeled doses and obtain an ECG in patients with cardiac risk factors. Monitor for constipation.
What other medicines interact with Loperamide?
MediHelp also lists interactions of Loperamide with, for example, Amiodarone, Amisulpride, Anagrelide. The full list is on the Loperamide page.
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