Drug interactions
Atropine + Loxapine
Severity: Moderate
Atropine and Loxapine: 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
Loxapine has anticholinergic activity, so adding atropine increases the risk of dry mouth, constipation, urinary retention, tachycardia, blurred vision, confusion, and hyperthermia. Reduced gut motility may also modestly alter absorption of oral loxapine.
What this interaction means in plain words
Atropine and Loxapine 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.
Atropine belongs to Miscellaneous; Loxapine belongs to Central Nervous System.
Why it happens
Additive antimuscarinic effects, with possible slowed gastrointestinal transit affecting oral absorption.
What to do
Monitor for anticholinergic toxicity, especially in older adults and those with glaucoma or urinary obstruction. Reduce the atropine dose or choose alternatives if symptoms develop.
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 Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Other interactions of Atropine
- Atropine + Eluxadoline Major
- Atropine + Henbane Major
- Atropine + Pramlintide Major
- Abobotulinumtoxina + Atropine Moderate
- Aclidinium + Atropine Moderate
- Amantadine + Atropine Moderate
Frequently asked questions
Can I take Atropine with Loxapine?
MediHelp rates the interaction as moderate. Atropine and Loxapine 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. Loxapine has anticholinergic activity, so adding atropine increases the risk of dry mouth, constipation, urinary retention, tachycardia, blurred vision, confusion, and hyperthermia. Reduced gut motility may also modestly alter absorption of oral loxapine.
How serious is the interaction between Atropine and Loxapine?
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 toxicity, especially in older adults and those with glaucoma or urinary obstruction. Reduce the atropine dose or choose alternatives if symptoms develop.
What other medicines interact with Loxapine?
MediHelp also lists interactions of Loxapine with, for example, Alfentanil, Alprazolam, Amisulpride. The full list is on the Loxapine page.
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