Drug interactions
Armodafinil + Pretomanid
Severity: Major
Armodafinil and Pretomanid: 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
Armodafinil may lower pretomanid concentrations by inducing CYP3A4. Reduced exposure could compromise the efficacy of tuberculosis regimens and promote resistance. Labeling advises avoiding strong and moderate CYP3A4 inducers.
What this interaction means in plain words
Armodafinil and Pretomanid 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.
Armodafinil belongs to Central Nervous System; Pretomanid belongs to Anti Bacterial.
Why it happens
CYP3A4 induction by armodafinil increases the metabolism of pretomanid, a CYP3A4 substrate.
What to do
Avoid the combination and use a non-inducing alternative to armodafinil. If unavoidable, monitor the clinical and microbiologic response.
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 Armodafinil
Other interactions of Pretomanid
Frequently asked questions
Can I take Armodafinil with Pretomanid?
MediHelp rates the interaction as major. Armodafinil and Pretomanid 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. Armodafinil may lower pretomanid concentrations by inducing CYP3A4. Reduced exposure could compromise the efficacy of tuberculosis regimens and promote resistance. Labeling advises avoiding strong and moderate CYP3A4 inducers.
How serious is the interaction between Armodafinil and Pretomanid?
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 and use a non-inducing alternative to armodafinil. If unavoidable, monitor the clinical and microbiologic response.
What other medicines interact with Armodafinil?
MediHelp also lists interactions of Armodafinil with, for example, Avapritinib, Cyclosporine, Elacestrant. The full list is on the Armodafinil page.
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