Pending medical review

The honest summary

Where it may help

Ashwagandha has the most evidence. A 2021 review of five placebo-controlled trials, with 400 adults, found a small but significant improvement in sleep, larger in people diagnosed with insomnia. In a trial of 64 adults with long-term stress, 60 days of an ashwagandha root extract lowered stress scores and blood cortisol more than placebo.[1][2]

Where evidence is thin

These were short trials of specific extracts, and quality of life did not improve in the sleep review. Data on serious side effects over the long term are limited. The stress trial was at a single centre, used one branded extract, KSM-66, and studied stress rather than a diagnosed anxiety disorder.[1][2]

When to see an allopath

For generalised anxiety, the NHS lists talking therapies, usually cognitive behavioural therapy (CBT), and medicines, usually a type of antidepressant called an SSRI. See a doctor if you think you have an anxiety disorder, or if your treatment is not helping. If you already take an antidepressant or a sleeping tablet, ask your doctor before adding ashwagandha.[3]

How the texts understand it

यदा तु मनसि क्लान्ते कर्मात्मानः क्लमान्विताः । विषयेभ्यो निवर्तन्ते तदा स्वपिति मानवः ॥

Charaka explains sleep simply: when the mind is tired, and the tired senses withdraw from their objects, a person sleeps. This is a description of normal sleep, not a definition of insomnia or of an anxiety disorder. The national NAMASTE terminology uses nidranasha, loss of sleep, for insomnia. The match between classical and modern terms is loose.[7]

Codes: ICD-11 6B00 (Generalised anxiety disorder)[8]; ICD-11 7A00 (Chronic insomnia)[8]; ICD-11 TM2 SQ24 (Insomnia disorder (TM2))[8]; NAMASTE RA-1 (Nidranasha (asvapna), listed against SQ24 (insomnia).)[9]

What trials found

Systematic reviewSystematic review and meta-analysis of five randomised trials of ashwagandha extract against placebo, 400 adults. Sleep improved overall (standardised mean difference -0.59), with larger effects in adults diagnosed with insomnia, at 600 mg a day or more, and over eight weeks or longer. Quality of life did not change. Doses, products and lengths varied between trials, and the review was unfunded.[1]

RCTDouble-blind trial of 64 adults with a history of long-term stress, at a single centre. They took a 300 mg capsule of ashwagandha root extract (KSM-66) or a placebo twice a day for 60 days, and 61 completed. Scores on every stress scale fell more with ashwagandha, and so did serum cortisol, though the paper gives two different P-values for cortisol (0.0006 and 0.002). It was a trial in stress, not in a diagnosed anxiety disorder.[2]

Signs that need a doctor

Thoughts of suicide. Get help now from a doctor or a mental health crisis service, and tell someone you trust. If you feel you may be about to harm yourself, go to the nearest hospital emergency department or call emergency services.[5]
Someone has seriously injured themselves or taken an overdose, or you feel you cannot keep yourself or someone else safe. This is an emergency.[4]
Breathing that stops and starts during sleep, gasping or choking at night, loud snoring, or feeling very tired during the day. Ask to be checked for sleep apnoea.[6]
You think you may have generalised anxiety disorder, or you have been diagnosed and treatment is not helping. See a doctor.[3]

Withheld until review

Treatment approach and protocols appear only after a vaidya on our medical board has reviewed this page. Treatment depends on the person, which is what a consult is for.

Questions people ask

Can Ayurveda cure anxiety permanently?

None of the trials we found showed that. The ashwagandha trials lasted weeks to a few months and measured stress scores and sleep, not long-term recovery from an anxiety disorder.[1][2]

Can I take ashwagandha with my anxiety or sleep medicine?

The trials on this page did not report on ashwagandha taken with these medicines. Ask your prescribing doctor first, and see our pages on ashwagandha with SSRIs and with sleep medicines.[1][2]

Evidence

Does ashwagandha improve sleep?

A 2021 review of five trials found a small improvement in sleep with ashwagandha extract. The effect looked larger in people with insomnia.

Evidence

Does ashwagandha reduce stress?

One small placebo-controlled trial found ashwagandha root extract lowered stress scores and cortisol over 60 days. Promising, not settled.

Interaction

Ashwagandha and antidepressants (SSRIs, SNRIs)

Doctors in Poland reported side effects they judged were caused by ashwagandha with sertraline, escitalopram or paroxetine.

Interaction

Ashwagandha with sleeping pills and benzodiazepines

Not studied in people. Ashwagandha may have sedative effects that add to benzodiazepines and sleeping pills, based on preclinical work.

Sources

Awaiting review by The Good Vaidya Medical Board. Prepared from the sources below and checked against each one.

Published 4 November 2026 · Last updated 4 November 2026

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Suggest a correction Changelog How we write these pagesNot a diagnosis or prescription. In an emergency, call 112.

Anxiety and sleep problems: what Ayurveda offers