Drug interactions
Homatropine + Ipratropium-salbutamol
Severity: Minor
Homatropine and Ipratropium-salbutamol: minor 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
Homatropine is an antimuscarinic and can add to the anticholinergic effects of ipratropium. Because inhaled ipratropium has little systemic absorption, a meaningful systemic interaction is unlikely at usual doses.
What this interaction means in plain words
Homatropine and Ipratropium-salbutamol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Homatropine belongs to Genitourinary; Ipratropium-salbutamol belongs to Respiratory.
Why it happens
Additive muscarinic antagonism, limited by low systemic absorption of ipratropium.
What to do
No routine adjustment is needed; watch for dry mouth, urinary retention or eye symptoms, especially with high doses or in older patients.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Ipratropium-salbutamol
Other interactions of Homatropine
- Amantadine + Homatropine Moderate
- Amitriptyline + Homatropine Moderate
- Atropine + Homatropine Moderate
- Benztropine + Homatropine Moderate
- Bethanechol + Homatropine Moderate
- Chlorpromazine + Homatropine Moderate
Frequently asked questions
Can I take Homatropine with Ipratropium-salbutamol?
MediHelp rates the interaction as minor. Homatropine and Ipratropium-salbutamol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Homatropine is an antimuscarinic and can add to the anticholinergic effects of ipratropium. Because inhaled ipratropium has little systemic absorption, a meaningful systemic interaction is unlikely at usual doses.
How serious is the interaction between Homatropine and Ipratropium-salbutamol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed; watch for dry mouth, urinary retention or eye symptoms, especially with high doses or in older patients.
What other medicines interact with Ipratropium-salbutamol?
MediHelp also lists interactions of Ipratropium-salbutamol with, for example, Amisulpride, Arsenic trioxide, Carvedilol. The full list is on the Ipratropium-salbutamol page.
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