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Drug interactions

Chlorpheniramine + Levalbuterol

Severity: Minor

Chlorpheniramine and Levalbuterol: 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

Chlorpheniramine causes sedation whereas levalbuterol can cause stimulation, tremor and nervousness, so the effects may partly offset each other. There is no meaningful harmful interaction of significance.

What this interaction means in plain words

Chlorpheniramine and Levalbuterol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Opposing pharmacodynamic effects on CNS arousal; no established mechanism for a clinically important interaction.

What to do

No specific action is required beyond awareness. Monitor for drowsiness or jitteriness and adjust therapy based on symptoms.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Chlorpheniramine with Levalbuterol?

MediHelp rates the interaction as minor. Chlorpheniramine and Levalbuterol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Chlorpheniramine causes sedation whereas levalbuterol can cause stimulation, tremor and nervousness, so the effects may partly offset each other. There is no meaningful harmful interaction of significance.

How serious is the interaction between Chlorpheniramine and Levalbuterol?

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 specific action is required beyond awareness. Monitor for drowsiness or jitteriness and adjust therapy based on symptoms.

What other medicines interact with Chlorpheniramine?

MediHelp also lists interactions of Chlorpheniramine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Chlorpheniramine page.

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