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Does Ketoconazole Interact with Almotriptan?

Ketoconazole and Almotriptan have a contraindicated drug interaction according to U.S. FDA drug labeling data. 7 DRUG INTERACTIONS • Do not use almotriptan tablets and ergotamine-containing or ergot-type medications within 24 hours of each other ( 4.5 , 7.1 ) • Do not use almotriptan tablets and other 5-HT 1 agonist (e.g., triptans) within 24 hours of each other ( 4.6 , 7.2 ) • SSRI or SNRI: life-threatening serotonin syndrome reported during combined use with triptans ( 5.5 , 7.3 ) • Ketoconazole: use single dose of almotriptan tablets 6.25 mg; maximum almotriptan tablets daily dose 12.5 mg ( 7.4 ) 7.1 Ergot-Containing Drugs These drugs have been reported to cause prolonged vasospastic reactions. 7.4 Ketoconazole and Other Potent CYP3A4 Inhibitors Co-administration of almotriptan and oral ketoconazole, a potent CYP3A4 inhibitor, resulted in an approximately 60% increase in exposure of almotriptan. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Ketoconazole Class
Azole Antifungal
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Ketoconazole and your doctor is considering prescribing Almotriptan (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Ketoconazole+💊 Almotriptan(Almotriptan)

Severity & Interaction Details

⛔
contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
Azole Antifungal
Drug B class
—
Source
FDA drug label - almotriptan

What this means in plain English

7 DRUG INTERACTIONS • Do not use almotriptan tablets and ergotamine-containing or ergot-type medications within 24 hours of each other ( 4.5 , 7.1 ) • Do not use almotriptan tablets and other 5-HT 1 agonist (e.g., triptans) within 24 hours of each other ( 4.6 , 7.2 ) • SSRI or SNRI: life-threatening serotonin syndrome reported during combined use with triptans ( 5.5 , 7.3 ) • Ketoconazole: use single dose of almotriptan tablets 6.25 mg; maximum almotriptan tablets daily dose 12.5 mg ( 7.4 ) 7.1 Ergot-Containing Drugs These drugs have been reported to cause prolonged vasospastic reactions. 7.4 Ketoconazole and Other Potent CYP3A4 Inhibitors Co-administration of almotriptan and oral ketoconazole, a potent CYP3A4 inhibitor, resulted in an approximately 60% increase in exposure of almotriptan.

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Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.