Drug interactions
Famotidine + Levoketoconazole
Severity: Major
Famotidine 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
Levoketoconazole requires an acidic gastric environment for dissolution. Famotidine raises gastric pH and may markedly lower levoketoconazole absorption, risking loss of cortisol-lowering effect in Cushing's syndrome.
What this interaction means in plain words
Famotidine 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.
Famotidine belongs to Gastrointestinal Tract; Levoketoconazole belongs to Endocrine.
Why it happens
Elevated gastric pH reduces dissolution and absorption of levoketoconazole.
What to do
Avoid H2 antagonists and proton pump inhibitors; if an antacid is required, separate it from levoketoconazole by at least 2 hours. Monitor cortisol control.
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 Famotidine
- Atazanavir + Famotidine Major
- Dasatinib + Famotidine Major
- Famotidine + Infigratinib Major
- Famotidine + Itraconazole Major
- Famotidine + Neratinib Major
- Famotidine + Pazopanib Major
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 Famotidine with Levoketoconazole?
MediHelp rates the interaction as major. Famotidine 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. Levoketoconazole requires an acidic gastric environment for dissolution. Famotidine raises gastric pH and may markedly lower levoketoconazole absorption, risking loss of cortisol-lowering effect in Cushing's syndrome.
How serious is the interaction between Famotidine 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 H2 antagonists and proton pump inhibitors; if an antacid is required, separate it from levoketoconazole by at least 2 hours. Monitor cortisol control.
What other medicines interact with Famotidine?
MediHelp also lists interactions of Famotidine with, for example, Atazanavir, Dasatinib, Infigratinib. The full list is on the Famotidine page.
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