Drug interactions
Isoproterenol + Loxapine
Severity: Moderate
Isoproterenol 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's alpha-blockade can cause vasodilation and hypotension, and isoproterenol, a beta agonist, causes vasodilation and tachycardia. Together they may produce additive hypotension and reflex tachycardia. A sedation effect is not clinically meaningful.
What this interaction means in plain words
Isoproterenol 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.
Isoproterenol belongs to Respiratory; Loxapine belongs to Central Nervous System.
Why it happens
Additive vasodilatory effects from alpha-1 antagonism and beta-2 agonism.
What to do
Monitor blood pressure and heart rate during isoproterenol administration. Adjust the infusion rate and ensure volume status is adequate.
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 Isoproterenol
Frequently asked questions
Can I take Isoproterenol with Loxapine?
MediHelp rates the interaction as moderate. Isoproterenol 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's alpha-blockade can cause vasodilation and hypotension, and isoproterenol, a beta agonist, causes vasodilation and tachycardia. Together they may produce additive hypotension and reflex tachycardia. A sedation effect is not clinically meaningful.
How serious is the interaction between Isoproterenol 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 blood pressure and heart rate during isoproterenol administration. Adjust the infusion rate and ensure volume status is adequate.
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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