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ashwagandha

Moderate evidence

Ashwagandha and Lexapro: Is It Safe?

Can you take ashwagandha with Lexapro? No dangerous interaction is documented, but escitalopram plus an adaptogen can add sedation. What the evidence says.

Updated August 2026

Reviewed by Enoch C., MSc — Research & Editorial
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Ashwagandha (Withania somnifera) is an adaptogenic herb used as a supplement to support the body’s stress response and a calmer baseline mood. Lexapro (escitalopram) is a selective serotonin reuptake inhibitor, or SSRI, prescribed for depression and anxiety. The short answer on combining them: no dangerous interaction is documented, but because a prescription antidepressant is involved, this is a decision to make with your prescriber rather than on your own. You can read more on the ashwagandha page, and the anxiety guide sets it among other options.

How each one works

The two act through different systems, which is the main reason they do not obviously clash. Escitalopram blocks the reabsorption of serotonin at the synapse, leaving more available and gradually lifting mood over several weeks. Ashwagandha works elsewhere. Its withanolides are associated with a lower cortisol response and with GABA-like signalling, the pattern behind its reputation for taking the edge off stress. A randomised trial by Chandrasekhar and colleagues (2012) reported a meaningful drop in perceived stress and serum cortisol over 60 days at 300 mg of a root extract twice daily.

Because ashwagandha is not a meaningful serotonin booster, it does not raise the serotonin-syndrome worry tied to a precursor like 5-HTP. Serotonin syndrome is a serious reaction driven by excess serotonergic activity, described by Boyer and Shannon (2005), and the compounds that trigger it are the ones that flood the serotonin system directly. Ashwagandha is not one of them.

What the evidence on combining them shows

No trial has been designed around ashwagandha plus escitalopram, so direct evidence is thin. What exists is adjacent. A separate randomised study by Lopresti and colleagues (2019) found lower stress and morning cortisol in adults taking 240 mg daily for 60 days, and a trial by Salve and colleagues (2019) reported similar anxiety and cortisol changes without a safety signal. None of this tests the Lexapro pairing, but it explains why interaction checkers generally list no major flag.

The cautions are real even so. The likeliest issue is additive sedation. Beyond that, ashwagandha can raise thyroid hormone levels, which matters if you take thyroid medication, and rare reports link concentrated extracts to liver injury, summarised by the NIH LiverTox review. These are reasons to involve a clinician, not to panic.

What to look for in an ashwagandha supplement if you take an SSRI

If your doctor is comfortable with it, the label matters more than usual when you are already on a prescription. Choose a single-ingredient root extract with the dose stated per capsule and a named standardisation, such as KSM-66 (root only) or Sensoril, at a dose used in trials, roughly 240 to 600 mg daily. Third-party testing (NSF, USP, or Informed Choice) confirms the label is accurate, which matters when a clinician is signing off. Avoid combination formulas that bundle in 5-HTP, St John’s wort, kava, or other sedating or serotonergic extracts, since each one adds a fresh interaction to check. The ashwagandha page covers what to verify, and the stress guide shows where it sits among better-studied supports.

Cautions and interactions

This is a your-money-or-your-life topic, so the framing is deliberate: ashwagandha is not a treatment for depression or anxiety, and it is not a reason to change or stop your Lexapro. If you want to add it while on an antidepressant, the concerns are additive drowsiness, a possible shift in thyroid hormone levels, and rare liver effects with concentrated extracts. Watch for unusual daytime sleepiness, and stop and seek care if you notice yellowing skin, dark urine, or persistent nausea. Never adjust your escitalopram dose to make room for a supplement. Talk to your prescriber or pharmacist before combining the two, and bring the exact product so they can check it against everything else you take.

This article is educational and not medical advice. See our disclaimer, and if you are struggling, our get help page lists support.

Sources

  • Chandrasekhar K, et al. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root. Indian J Psychol Med. 2012. PubMed 23439798
  • Lopresti AL, et al. An investigation into the stress-relieving and pharmacological actions of an ashwagandha extract. Medicine (Baltimore). 2019. PubMed 31517876
  • Salve J, et al. Adaptogenic and anxiolytic effects of ashwagandha root extract in healthy adults. Cureus. 2019. PubMed 31728244
  • Boyer EW, Shannon M. The Serotonin Syndrome. N Engl J Med. 2005. PubMed 15784664
  • LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. Ashwagandha. National Institute of Diabetes and Digestive and Kidney Diseases. NIH Bookshelf

Frequently asked questions

Can you take ashwagandha with Lexapro?

No dangerous interaction between ashwagandha and escitalopram (Lexapro) is documented, and clinical trials have used ashwagandha safely in adults. That is not the same as clearance to combine them. Both can be calming, and ashwagandha has other effects worth checking, so anyone on an antidepressant should ask their prescriber before starting it.

Does ashwagandha raise serotonin like an SSRI?

Ashwagandha is not a strong serotonergic agent. Its stress effects are linked mainly to lower cortisol and GABA-like activity rather than blocking serotonin reuptake the way Lexapro does. Because of that it does not carry the same direct serotonin-syndrome concern as a precursor such as 5-HTP, though evidence on the specific pairing is limited.

Could ashwagandha make Lexapro side effects worse?

The most realistic overlap is sedation. Escitalopram can cause tiredness in some people, and ashwagandha tends to settle the nervous system, so together they may leave you more drowsy than expected. Ashwagandha can also nudge thyroid hormone levels and, rarely, affect the liver, which are worth flagging to your doctor.

Should I stop ashwagandha before telling my doctor?

Do not stop your Lexapro on your own. For the supplement, the safest order is to speak to your prescriber or pharmacist before you start ashwagandha, or before your next dose if you have already begun. Bring the exact product and dose so they can check it against your full medication list.

What is the best ashwagandha supplement to take with an SSRI?

Look for a single-ingredient root extract with the dose and standardisation stated on the label, such as KSM-66 or Sensoril at a studied dose, plus third-party testing. Avoid blends that add other serotonergic or sedating herbs, because each extra ingredient is one more thing your prescriber has to check.

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