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Drug interactions

Desvenlafaxine + Valerian

Severity: Minor

Desvenlafaxine and Valerian: 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

Valerian has sedative properties, and desvenlafaxine can cause somnolence and dizziness. Used together they may cause additive drowsiness and impaired psychomotor performance. Data are limited and the effect is generally modest.

What this interaction means in plain words

Desvenlafaxine and Valerian 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

Additive CNS depressant effects, likely through GABAergic activity of valerian.

What to do

Advise patients about possible additive drowsiness and caution with driving or machinery. Stop valerian if excessive sedation develops.

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 Desvenlafaxine with Valerian?

MediHelp rates the interaction as minor. Desvenlafaxine and Valerian have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Valerian has sedative properties, and desvenlafaxine can cause somnolence and dizziness. Used together they may cause additive drowsiness and impaired psychomotor performance. Data are limited and the effect is generally modest.

How serious is the interaction between Desvenlafaxine and Valerian?

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 about possible additive drowsiness and caution with driving or machinery. Stop valerian if excessive sedation develops.

What other medicines interact with Desvenlafaxine?

MediHelp also lists interactions of Desvenlafaxine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Desvenlafaxine page.

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