Drug interactions
Armodafinil + Tolterodine
Severity: Minor
Armodafinil and Tolterodine: minor 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 is a weak inducer of CYP3A4 and may modestly lower tolterodine exposure. The clinical relevance is small because the active moiety is maintained through the CYP2D6 pathway.
What this interaction means in plain words
Armodafinil and Tolterodine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Armodafinil belongs to Central Nervous System; Tolterodine belongs to Genitourinary.
Why it happens
Weak CYP3A4 induction by armodafinil increases tolterodine clearance.
What to do
No routine adjustment. Reassess bladder symptom control if the response to tolterodine seems to diminish.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Tolterodine
Other interactions of Armodafinil
Frequently asked questions
Can I take Armodafinil with Tolterodine?
MediHelp rates the interaction as minor. Armodafinil and Tolterodine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Armodafinil is a weak inducer of CYP3A4 and may modestly lower tolterodine exposure. The clinical relevance is small because the active moiety is maintained through the CYP2D6 pathway.
How serious is the interaction between Armodafinil and Tolterodine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment. Reassess bladder symptom control if the response to tolterodine seems to diminish.
What other medicines interact with Tolterodine?
MediHelp also lists interactions of Tolterodine with, for example, Clarithromycin, Clozapine, Cobicistat. The full list is on the Tolterodine page.
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