Drug interactions
Flavoxate + Haloperidol
Severity: Minor
Flavoxate and Haloperidol: 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
Haloperidol has weak anticholinergic activity, so the additive effect with flavoxate is generally small. Mild dry mouth, constipation or urinary hesitancy may occur, mainly in older patients.
What this interaction means in plain words
Flavoxate and Haloperidol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Flavoxate belongs to Genitourinary; Haloperidol belongs to Central Nervous System.
Why it happens
Weak additive antimuscarinic pharmacodynamic effects.
What to do
No routine change is needed. Monitor older patients for urinary retention and constipation.
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 Flavoxate
- Clozapine + Flavoxate Major
- Abobotulinumtoxina + Flavoxate Moderate
- Aclidinium + Flavoxate Moderate
- Amantadine + Flavoxate Moderate
- Amitriptyline + Flavoxate Moderate
- Amoxapine + Flavoxate Moderate
Other interactions of Haloperidol
- Dofetilide + Haloperidol Contraindicated
- Dronedarone + Haloperidol Contraindicated
- Haloperidol + Ibutilide Contraindicated
- Haloperidol + Levoketoconazole Contraindicated
- Haloperidol + Panobinostat Contraindicated
- Haloperidol + Pimozide Contraindicated
Frequently asked questions
Can I take Flavoxate with Haloperidol?
MediHelp rates the interaction as minor. Flavoxate and Haloperidol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Haloperidol has weak anticholinergic activity, so the additive effect with flavoxate is generally small. Mild dry mouth, constipation or urinary hesitancy may occur, mainly in older patients.
How serious is the interaction between Flavoxate and Haloperidol?
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 change is needed. Monitor older patients for urinary retention and constipation.
What other medicines interact with Flavoxate?
MediHelp also lists interactions of Flavoxate with, for example, Clozapine, Abobotulinumtoxina, Aclidinium. The full list is on the Flavoxate page.
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