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Drug interactions

Codeine + Scullcap

Severity: Minor

Codeine and Scullcap: 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

Scullcap has traditionally been used as a calming herbal remedy and may have mild sedative properties. Taken with codeine it could add to drowsiness, though clinical data are scarce.

What this interaction means in plain words

Codeine and Scullcap 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

Possible additive central nervous system depression; mechanism is theoretical and not well established.

What to do

Advise the patient to report increased drowsiness and avoid driving until response is known. Consider stopping the herbal product if excess sedation occurs.

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 Codeine with Scullcap?

MediHelp rates the interaction as minor. Codeine and Scullcap have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Scullcap has traditionally been used as a calming herbal remedy and may have mild sedative properties. Taken with codeine it could add to drowsiness, though clinical data are scarce.

How serious is the interaction between Codeine and Scullcap?

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 the patient to report increased drowsiness and avoid driving until response is known. Consider stopping the herbal product if excess sedation occurs.

What other medicines interact with Codeine?

MediHelp also lists interactions of Codeine with, for example, Alvimopan, Isocarboxazid, Olanzapine / samidorphan. The full list is on the Codeine page.

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