Drug interactions
Loxapine inhaled + Tiotropium
Severity: Moderate
Loxapine inhaled and Tiotropium: 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
Inhaled loxapine can cause bronchospasm and carries a risk in patients with obstructive airway disease, so concurrent use with an inhaled bronchodilator is relevant. Loxapine also has some anticholinergic activity that may add to tiotropium. The legacy hypoglycemia claim is unsupported.
What this interaction means in plain words
Loxapine inhaled and Tiotropium 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.
Why it happens
Loxapine-induced bronchospasm in airway disease and mild additive antimuscarinic effects.
What to do
Inhaled loxapine is restricted to patients with a REMS-type bronchospasm precaution and should only be given after screening for airway disease. Monitor respiratory status and have a short-acting bronchodilator available.
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 Tiotropium
Frequently asked questions
Can I take Loxapine inhaled with Tiotropium?
MediHelp rates the interaction as moderate. Loxapine inhaled and Tiotropium 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. Inhaled loxapine can cause bronchospasm and carries a risk in patients with obstructive airway disease, so concurrent use with an inhaled bronchodilator is relevant. Loxapine also has some anticholinergic activity that may add to tiotropium. The legacy hypoglycemia claim is unsupported.
How serious is the interaction between Loxapine inhaled and Tiotropium?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Inhaled loxapine is restricted to patients with a REMS-type bronchospasm precaution and should only be given after screening for airway disease. Monitor respiratory status and have a short-acting bronchodilator available.
What other medicines interact with Tiotropium?
MediHelp also lists interactions of Tiotropium with, for example, Glycopyrrolate inhaled, Indacaterol-glycopyrronium, Revefenacin. The full list is on the Tiotropium page.
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