Drug interactions
Meclizine + Propantheline
Severity: Moderate
Meclizine and Propantheline: 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
Propantheline is a potent antimuscarinic, and meclizine adds additional anticholinergic and sedative effects. The combination can increase dry mouth, constipation, urinary retention, blurred vision and tachycardia.
What this interaction means in plain words
Meclizine and Propantheline 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.
Why it happens
Additive antimuscarinic effects.
What to do
Monitor for anticholinergic effects and reduce doses if they develop. Avoid in patients with glaucoma, obstructive uropathy or reduced gut motility.
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 Meclizine
Frequently asked questions
Can I take Meclizine with Propantheline?
MediHelp rates the interaction as moderate. Meclizine and Propantheline 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. Propantheline is a potent antimuscarinic, and meclizine adds additional anticholinergic and sedative effects. The combination can increase dry mouth, constipation, urinary retention, blurred vision and tachycardia.
How serious is the interaction between Meclizine and Propantheline?
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 effects and reduce doses if they develop. Avoid in patients with glaucoma, obstructive uropathy or reduced gut motility.
What other medicines interact with Meclizine?
MediHelp also lists interactions of Meclizine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Meclizine page.
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