Drug interactions
Glycopyrrolate inhaled + Haloperidol
Severity: Minor
Glycopyrrolate inhaled 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
Inhaled glycopyrrolate has low systemic exposure but can still add antimuscarinic effects to those of haloperidol, such as dry mouth, urinary retention and constipation. The effect is typically small at usual inhaled doses.
What this interaction means in plain words
Glycopyrrolate inhaled 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.
Why it happens
Additive antimuscarinic effects with limited systemic absorption of the inhaled drug.
What to do
No dose change is usually needed; ask about urinary retention, constipation and dry mouth, particularly in older patients or those with glaucoma or prostatic enlargement.
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 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 Glycopyrrolate inhaled with Haloperidol?
MediHelp rates the interaction as minor. Glycopyrrolate inhaled 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. Inhaled glycopyrrolate has low systemic exposure but can still add antimuscarinic effects to those of haloperidol, such as dry mouth, urinary retention and constipation. The effect is typically small at usual inhaled doses.
How serious is the interaction between Glycopyrrolate inhaled 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 dose change is usually needed; ask about urinary retention, constipation and dry mouth, particularly in older patients or those with glaucoma or prostatic enlargement.
What other medicines interact with Haloperidol?
MediHelp also lists interactions of Haloperidol with, for example, Dofetilide, Dronedarone, Ibutilide. The full list is on the Haloperidol page.
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