The short answer
Review ashwagandha with your prescriber before adding it to trazodone. Drowsiness is possible with some products, but there is no established uniform added-sedation effect for this exact pair.
What this answer covers
Withania somnifera; root-only trial extract differs from leaf or mixed preparations.
- Supplement or preparation
- Withania somnifera
- Medication ingredient
- trazodone
Why product review matters
Trazodone can impair alertness. NCCIH notes drowsiness with some ashwagandha preparations and possible interactions with sedatives.
One root-extract study had reassuring limits
A ten-week root-extract trial reported no adverse events and no significant between-group difference in morning alertness. Regular medication users were excluded, so it does not test trazodone co-use.
Do not transfer another herb’s case
A chart review mentioned trazodone with Tribulus and Withania with other antidepressants. Those separate reports do not establish this exact combination.
Watch for impaired alertness
Trazodone can affect alertness and coordination. Avoid driving if affected and contact the prescriber if added sleepiness, confusion or unsteadiness appears after a new product. Severe confusion, fainting or inability to wake needs urgent assessment.
Evidence and practical considerations
Side effects & toxicity
Conditional alertness precaution with negative standalone findings and exact-pair evidence gap retained.
- Exact scope
- Withania somnifera; root-only trial extract differs from leaf or mixed preparations. with Exact oral trazodone hydrochloride immediate-release tablets. RxNorm IN 10737/PIN 82112 hydrochloride; current immediate-release tablet scope. Oral solutions and modified-release products are not automatically equivalent.
- Medication form and route
- oral
- Timing or duration
- Source-specific single-dose, repeated-dose and observational exposures distinguished.
What remains uncertain
- Sleep trial excluded regular medication users. Adverse-report series involved different drug/herb pairs and cannot establish trazodone-Withania toxicity.
Factors that may matter: preparation and plant part; clinical indication; dose; other medicines; baseline alertness.
Read the supporting source summaries
Source 1: current product label
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: People prescribed oral trazodone.
Exact label names tryptophan and St John’s wort in serotonin warnings; strong CYP3A4 modifiers may change exposure. Drowsiness, orthostatic effects and QT warnings are distinct.
How this applies: RxNorm IN 10737/PIN 82112 hydrochloride; current immediate-release tablet scope. Oral solutions and modified-release products are not automatically equivalent.
No universal supplement interval, event rate or preparation equivalence established. Original label distinguishes warnings from measured pair-specific results.
Source 2: official guidance
nccih.nih.gov · Source check Sep 10, 2026
Population: People considering the specified supplement.
Some preparations can cause drowsiness; possible interaction with sedatives. Products and studied preparations vary.
How this applies: Preparation-specific original evidence; no untested antidepressant or route transfer.
No direct trazodone study; short-term safety observations do not establish long-term safety.
Source 3: randomized placebo-controlled trial
pubmed.ncbi.nlm.nih.gov · Source check Sep 10, 2026
Population: 60 adults enrolled with insomnia and anxiety.
Some sleep outcomes improved; no adverse events were reported. Morning alertness did not differ significantly between groups at ten weeks.
How this applies: Preparation-specific original evidence; no untested antidepressant or route transfer.
Regular medication users and people with restless legs syndrome or other sleep disorders were excluded. Exploratory study; internal reporting inconsistencies in analysis counts. Cannot extend to trazodone-treated patients or leaf preparations.
Source 4: original retrospective case review
pubmed.ncbi.nlm.nih.gov · Source check Sep 10, 2026
Population: Selected retrospective adverse-event reports involving antidepressants and botanical products.
Trazodone was associated with a Tribulus report; Withania reports involved other drugs.
How this applies: Only the named drug, preparation, route and measured endpoints apply.
No exact trazodone-Withania pair established; proposed mechanisms and another botanical’s event cannot be transferred.
Research assessment: · Open full citations ↗
Review and change history
- Publication status
- Published research summary
- Clinical review
- Not yet recorded
| Date | Update |
|---|---|
| Article prepared | |
| Current exact available claims adjudicated using original captures and explicit identity and comparator limits. | |
| Research summary published |
Article revision: 5407eeab1e4a4c6f
This guide brings together the evidence records used by our interaction checker. Each finding retains its own preparation limits, research date, and source summaries.
Full citations require verification. Reading this answer and the source summaries does not.
Taking other supplements or medications?
Use the checker to explore your other combinations. Ask a pharmacist to review the exact products, amounts and medical conditions in your complete list.
Open the interaction checkerInformation, not medical advice. Do not change prescribed treatment based on this guide.