Drug interactions
Amobarbital + Levoketoconazole
Severity: Major
Amobarbital and Levoketoconazole: 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
Amobarbital may lower levoketoconazole exposure through enzyme induction, risking loss of cortisol-lowering effect in Cushing syndrome. Levoketoconazole absorption also depends on gastric acidity, but the principal concern is induction.
What this interaction means in plain words
Amobarbital and Levoketoconazole 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.
Amobarbital belongs to Central Nervous System; Levoketoconazole belongs to Endocrine.
Why it happens
Barbiturate induction of CYP3A4 increases levoketoconazole metabolism.
What to do
Avoid combining with strong CYP3A4 inducers where possible; if unavoidable, monitor cortisol control and consider an alternative sedative.
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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Other interactions of Amobarbital
- Amobarbital + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Amobarbital + Doravirine Contraindicated
- Amobarbital + Elbasvir / grazoprevir Contraindicated
- Amobarbital + Isavuconazonium Contraindicated
- Amobarbital + Isocarboxazid Contraindicated
- Amobarbital + Lonafarnib Contraindicated
Other interactions of Levoketoconazole
- Alfuzosin + Levoketoconazole Contraindicated
- Alprazolam + Levoketoconazole Contraindicated
- Amiodarone + Levoketoconazole Contraindicated
- Avanafil + Levoketoconazole Contraindicated
- Cisapride + Levoketoconazole Contraindicated
- Clarithromycin + Levoketoconazole Contraindicated
Frequently asked questions
Can I take Amobarbital with Levoketoconazole?
MediHelp rates the interaction as major. Amobarbital and Levoketoconazole 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. Amobarbital may lower levoketoconazole exposure through enzyme induction, risking loss of cortisol-lowering effect in Cushing syndrome. Levoketoconazole absorption also depends on gastric acidity, but the principal concern is induction.
How serious is the interaction between Amobarbital and Levoketoconazole?
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 combining with strong CYP3A4 inducers where possible; if unavoidable, monitor cortisol control and consider an alternative sedative.
What other medicines interact with Amobarbital?
MediHelp also lists interactions of Amobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Doravirine, Elbasvir / grazoprevir. The full list is on the Amobarbital page.
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