Drug interactions
Loxapine + Opium tincture
Severity: Major
Loxapine and Opium tincture: major interaction.
Last updated Sources: US FDA label
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
Opioids combined with antipsychotics such as loxapine increase sedation, hypotension and respiratory depression. Opium tincture is potent and dosed in small volumes, so errors can be dangerous.
What this interaction means in plain words
Loxapine and Opium tincture can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive CNS and respiratory depression from opioid receptor agonism and loxapine's sedative actions.
What to do
Use the lowest effective doses and monitor sedation, respiratory rate and blood pressure. Verify the tincture dose carefully and avoid other CNS depressants.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Frequently asked questions
Can I take Loxapine with Opium tincture?
MediHelp rates the interaction as major. Loxapine and Opium tincture can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Opioids combined with antipsychotics such as loxapine increase sedation, hypotension and respiratory depression. Opium tincture is potent and dosed in small volumes, so errors can be dangerous.
How serious is the interaction between Loxapine and Opium tincture?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor sedation, respiratory rate and blood pressure. Verify the tincture dose carefully and avoid other CNS depressants.
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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