Drug interactions
Chlorpromazine + Glycopyrrolate
Severity: Moderate
Chlorpromazine and Glycopyrrolate: moderate 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
Chlorpromazine has anticholinergic properties that add to those of glycopyrrolate. This may cause dry mouth, constipation, urinary retention, blurred vision, tachycardia and confusion, and in severe cases reduced gut motility or ileus.
What this interaction means in plain words
Chlorpromazine and Glycopyrrolate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Chlorpromazine belongs to Central Nervous System; Glycopyrrolate belongs to Respiratory.
Why it happens
Additive antimuscarinic (anticholinergic) pharmacodynamic effects.
What to do
Monitor for anticholinergic adverse effects, especially in older patients, and for constipation or urinary retention. Reduce the dose of one agent or choose an alternative if symptoms become troublesome.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Chlorpromazine
- Chlorpromazine + Dofetilide Contraindicated
- Chlorpromazine + Dronedarone Contraindicated
- Chlorpromazine + Droperidol Contraindicated
- Chlorpromazine + Ibutilide Contraindicated
- Chlorpromazine + Metrizamide Contraindicated
- Chlorpromazine + Panobinostat Contraindicated
Other interactions of Glycopyrrolate
- Glycopyrrolate + Potassium chloride Major
- Amitriptyline + Glycopyrrolate Moderate
- Atropine + Glycopyrrolate Moderate
- Bethanechol + Glycopyrrolate Moderate
- Clomipramine + Glycopyrrolate Moderate
- Clozapine + Glycopyrrolate Moderate
Frequently asked questions
Can I take Chlorpromazine with Glycopyrrolate?
MediHelp rates the interaction as moderate. Chlorpromazine and Glycopyrrolate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Chlorpromazine has anticholinergic properties that add to those of glycopyrrolate. This may cause dry mouth, constipation, urinary retention, blurred vision, tachycardia and confusion, and in severe cases reduced gut motility or ileus.
How serious is the interaction between Chlorpromazine and Glycopyrrolate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic adverse effects, especially in older patients, and for constipation or urinary retention. Reduce the dose of one agent or choose an alternative if symptoms become troublesome.
What other medicines interact with Chlorpromazine?
MediHelp also lists interactions of Chlorpromazine with, for example, Dofetilide, Dronedarone, Droperidol. The full list is on the Chlorpromazine page.
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