Drug interactions
Buprenorphine long-acting + Loxapine
Severity: Major
Buprenorphine long-acting and Loxapine: major interaction.
Last updated Sources: US FDA label
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
Combining buprenorphine with CNS depressants such as antipsychotics increases the risk of profound sedation, respiratory depression, coma and death. The long-acting injection provides prolonged exposure, so effects may persist for weeks.
What this interaction means in plain words
Buprenorphine long-acting and Loxapine 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.
What to do
Assess whether loxapine is necessary, and use the lowest effective dose with close monitoring of sedation and respiration. Counsel the patient and caregivers on warning signs of overdose.
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?
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References
Other interactions of Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Frequently asked questions
Can I take Buprenorphine long-acting with Loxapine?
MediHelp rates the interaction as major. Buprenorphine long-acting and Loxapine 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. Combining buprenorphine with CNS depressants such as antipsychotics increases the risk of profound sedation, respiratory depression, coma and death. The long-acting injection provides prolonged exposure, so effects may persist for weeks.
How serious is the interaction between Buprenorphine long-acting and Loxapine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Assess whether loxapine is necessary, and use the lowest effective dose with close monitoring of sedation and respiration. Counsel the patient and caregivers on warning signs of overdose.
What other medicines interact with Loxapine?
MediHelp also lists interactions of Loxapine with, for example, Alfentanil, Alprazolam, Amisulpride. The full list is on the Loxapine page.
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