Drug interactions
Lurasidone + Secobarbital
Severity: Major
Lurasidone and Secobarbital: major interaction.
Last updated Sources: UK SmPC
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
Secobarbital induces CYP3A4, which may markedly lower lurasidone levels and risk loss of antipsychotic efficacy. Lurasidone labeling advises against use with strong CYP3A4 inducers.
What this interaction means in plain words
Lurasidone and Secobarbital 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.
Lurasidone belongs to Central Nervous System; Secobarbital belongs to Central Nervous System.
Why it happens
Barbiturate induction of CYP3A4 increases lurasidone metabolism and lowers exposure.
What to do
Avoid the combination; use a non-inducing hypnotic instead. If it cannot be avoided, monitor for relapse and consider dose adjustment of lurasidone.
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 Secobarbital
- Calcium / magnesium / potassium / sodium oxybates + Secobarbital Contraindicated
- Doravirine + Secobarbital Contraindicated
- Elbasvir / grazoprevir + Secobarbital Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Secobarbital Contraindicated
- Isavuconazonium + Secobarbital Contraindicated
- Lonafarnib + Secobarbital Contraindicated
Other interactions of Lurasidone
- Apalutamide + Lurasidone Contraindicated
- Atazanavir + Lurasidone Contraindicated
- Carbamazepine + Lurasidone Contraindicated
- Clarithromycin + Lurasidone Contraindicated
- Cobicistat + Lurasidone Contraindicated
- Conivaptan + Lurasidone Contraindicated
Frequently asked questions
Can I take Lurasidone with Secobarbital?
MediHelp rates the interaction as major. Lurasidone and Secobarbital 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. Secobarbital induces CYP3A4, which may markedly lower lurasidone levels and risk loss of antipsychotic efficacy. Lurasidone labeling advises against use with strong CYP3A4 inducers.
How serious is the interaction between Lurasidone and Secobarbital?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; use a non-inducing hypnotic instead. If it cannot be avoided, monitor for relapse and consider dose adjustment of lurasidone.
What other medicines interact with Secobarbital?
MediHelp also lists interactions of Secobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Doravirine, Elbasvir / grazoprevir. The full list is on the Secobarbital page.
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