Drug interactions
Chlorpheniramine + Nettle
Severity: Minor
Chlorpheniramine and Nettle: 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
Nettle has been theorised to have sedative effects at high doses, which could add to chlorpheniramine drowsiness. Supporting evidence is minimal.
What this interaction means in plain words
Chlorpheniramine and Nettle have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Theoretical additive CNS depression.
What to do
Advise patients to monitor for added drowsiness and avoid driving if affected.
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 Chlorpheniramine
Frequently asked questions
Can I take Chlorpheniramine with Nettle?
MediHelp rates the interaction as minor. Chlorpheniramine and Nettle have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Nettle has been theorised to have sedative effects at high doses, which could add to chlorpheniramine drowsiness. Supporting evidence is minimal.
How serious is the interaction between Chlorpheniramine and Nettle?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to monitor for added drowsiness and avoid driving if affected.
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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