Drug interactions
Buprenorphine subdermal implant + Clemastine
Severity: Major
Buprenorphine subdermal implant and Clemastine: major 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
Buprenorphine is an opioid, and a sedating antihistamine can amplify drowsiness, dizziness and impaired alertness. Respiratory depression is a concern when other CNS depressants are added, and the implant cannot be quickly adjusted.
What this interaction means in plain words
Buprenorphine subdermal implant and Clemastine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive CNS and respiratory depression from the partial opioid agonist and the sedating H1 antihistamine.
What to do
Monitor for sedation and respiratory depression, and prefer a non-sedating antihistamine where possible. Counsel the patient about driving and alcohol.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Buprenorphine subdermal implant and Clemastine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Clemastine
Frequently asked questions
Can I take Buprenorphine subdermal implant with Clemastine?
MediHelp rates the interaction as major. Buprenorphine subdermal implant and Clemastine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Buprenorphine is an opioid, and a sedating antihistamine can amplify drowsiness, dizziness and impaired alertness. Respiratory depression is a concern when other CNS depressants are added, and the implant cannot be quickly adjusted.
How serious is the interaction between Buprenorphine subdermal implant and Clemastine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for sedation and respiratory depression, and prefer a non-sedating antihistamine where possible. Counsel the patient about driving and alcohol.
What other medicines interact with Clemastine?
MediHelp also lists interactions of Clemastine with, for example, Alfentanil, Benzhydrocodone / acetaminophen, Buprenorphine buccal. The full list is on the Clemastine page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
