Drug interactions
Diphenoxylate + Loxapine
Severity: Moderate
Diphenoxylate 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
Diphenoxylate is an opioid and, at higher doses or in overdose, can cause CNS and respiratory depression. With loxapine, drowsiness and impaired alertness may be additive, and anticholinergic effects may also add up.
What this interaction means in plain words
Diphenoxylate 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.
Diphenoxylate belongs to Gastrointestinal Tract; Loxapine belongs to Central Nervous System.
Why it happens
Additive CNS depression from opioid activity and antipsychotic sedation, plus additive anticholinergic effects.
What to do
Use the lowest effective dose and monitor for sedation and constipation or ileus. Avoid alcohol and other sedatives.
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 Diphenoxylate
Frequently asked questions
Can I take Diphenoxylate with Loxapine?
MediHelp rates the interaction as moderate. Diphenoxylate 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. Diphenoxylate is an opioid and, at higher doses or in overdose, can cause CNS and respiratory depression. With loxapine, drowsiness and impaired alertness may be additive, and anticholinergic effects may also add up.
How serious is the interaction between Diphenoxylate 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: Use the lowest effective dose and monitor for sedation and constipation or ileus. Avoid alcohol and other sedatives.
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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