What kind of interaction is it?

Caution: an interaction that may reduce efficacy or raise side-effect risk and warrants monitoring.

Is this interaction backed by published research?

Yes. NutriStack lists 2 citation rows for the Ashwagandha + Clonidine pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Supplement × Prescription·a caution·Emerging evidence

Ashwagandha + Clonidine

Q: Can I take Ashwagandha and Clonidine together?

Possibly, but with caution. Ashwagandha and Clonidine have a documented caution-tier interaction. Ashwagandha (Withania somnifera) has central calming and mild sedative-anxiolytic properties and may potentiate the sedation and drowsiness produced by clonidine, a centrally acting alpha-2 agonist. The combination can increase daytime somnolence and impair alertness, particularly during dose initiation or up-titration.

Q: How does this affect a NutriStack Stack Score?

-5 to your Stack Score per scored caution row.

Caution Emerging evidence

Ashwagandha (Withania somnifera) has central calming and mild sedative-anxiolytic properties and may potentiate the sedation and drowsiness produced by clonidine, a centrally acting alpha-2 agonist. The combination can increase daytime somnolence and impair alertness, particularly during dose initiation or up-titration.

Supplement × Prescription

Open the interaction checker → Read the methodology

From the database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, and the recommendation.

Substances

Ashwagandha and Clonidine

Pair type

Caution

Evidence

Emerging

Source citations

Scope

Supplement × Prescription

Last verified

June 4, 2026

CautionEmerging evidence

What is happening. Ashwagandha (Withania somnifera) has central calming and mild sedative-anxiolytic properties and may potentiate the sedation and drowsiness produced by clonidine, a centrally acting alpha-2 agonist. The combination can increase daytime somnolence and impair alertness, particularly during dose initiation or up-titration.

Mechanism. Additive CNS depression. Clonidine reduces central sympathetic outflow and produces sedation via alpha-2 adrenergic stimulation in the brainstem; ashwagandha exerts GABA-mimetic and anxiolytic effects that can compound this central depressant effect.

Recommendation. Use together cautiously. Watch for excessive drowsiness, slowed reaction time, and fatigue, especially when starting either agent or increasing the clonidine dose. Avoid driving or operating machinery until the combined effect is known. Consider taking ashwagandha at bedtime rather than during the day.

Stack Score

How it moves the number.

Effect on the composite score

If both Ashwagandha and Clonidine are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1Candelario M, et al. Direct evidence for GABAergic activity of Withania somnifera root extract. J Ethnopharmacol. 2015.Needs sourceNo link
2Lopresti AL, et al. An investigation into the stress-relieving and pharmacological actions of an ashwagandha extract. Medicine (Baltimore). 2019.Needs sourceNo link

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