Drug interactions
Aripiprazole + Homatropine
Severity: Minor
Aripiprazole and Homatropine: 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
Homatropine is an antimuscarinic and aripiprazole has weak anticholinergic activity. Combined use may modestly add to dry mouth, constipation, urinary retention and cognitive effects.
What this interaction means in plain words
Aripiprazole and Homatropine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Aripiprazole belongs to Central Nervous System; Homatropine belongs to Genitourinary.
Why it happens
Additive antimuscarinic effects.
What to do
Monitor for constipation, urinary retention and confusion, especially in older adults. Reduce the anticholinergic dose if symptoms develop.
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 Aripiprazole
- Aripiprazole + Pimozide Contraindicated
- Aripiprazole + Thioridazine Contraindicated
- Amisulpride + Aripiprazole Major
- Aripiprazole + Arsenic trioxide Major
- Aripiprazole + Calcium / magnesium / potassium / sodium oxybates Major
- Aripiprazole + Carbamazepine Major
Other interactions of Homatropine
- Amantadine + Homatropine Moderate
- Amitriptyline + Homatropine Moderate
- Atropine + Homatropine Moderate
- Benztropine + Homatropine Moderate
- Bethanechol + Homatropine Moderate
- Chlorpromazine + Homatropine Moderate
Frequently asked questions
Can I take Aripiprazole with Homatropine?
MediHelp rates the interaction as minor. Aripiprazole and Homatropine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Homatropine is an antimuscarinic and aripiprazole has weak anticholinergic activity. Combined use may modestly add to dry mouth, constipation, urinary retention and cognitive effects.
How serious is the interaction between Aripiprazole and Homatropine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for constipation, urinary retention and confusion, especially in older adults. Reduce the anticholinergic dose if symptoms develop.
What other medicines interact with Aripiprazole?
MediHelp also lists interactions of Aripiprazole with, for example, Pimozide, Thioridazine, Amisulpride. The full list is on the Aripiprazole page.
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