Drug interactions
Deferasirox + Tolterodine
Severity: Minor
Deferasirox 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
Deferasirox has variable effects on CYP enzymes, inducing CYP3A4 in some settings while inhibiting CYP2C8 and CYP1A2. A small decrease in tolterodine exposure is possible but not well characterized.
What this interaction means in plain words
Deferasirox 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.
Deferasirox belongs to Miscellaneous; Tolterodine belongs to Genitourinary.
Why it happens
Possible weak CYP3A4 induction by deferasirox; the effect is not well established.
What to do
No routine adjustment; reassess bladder symptom control if response diminishes.
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 Deferasirox
Frequently asked questions
Can I take Deferasirox with Tolterodine?
MediHelp rates the interaction as minor. Deferasirox 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. Deferasirox has variable effects on CYP enzymes, inducing CYP3A4 in some settings while inhibiting CYP2C8 and CYP1A2. A small decrease in tolterodine exposure is possible but not well characterized.
How serious is the interaction between Deferasirox 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 response diminishes.
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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