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Ashwagandha and alcohol have never been tested together in a human study, so nobody can tell you a safe way to combine them. What is known points to two overlapping concerns. Ashwagandha can cause drowsiness and may add to the effect of sedating medicines, and alcohol does the same. Ashwagandha has also been linked to rare cases of liver injury, and heavy drinking is a well-known cause of liver damage. Several sleep and stress formulas that contain ashwagandha carry a plain label warning not to use them with alcohol. This guide explains the evidence, who should be most careful and what to ask a pharmacist.
Peptide Labs sells products that contain ashwagandha, but this article does not recommend any of them. It is general information, not medical advice.
Key Takeaways
- No clinical trial has studied ashwagandha and alcohol together, so there is no tested safe combination.
- Ashwagandha has sedative properties, and sedating herbs taken with alcohol can increase drowsiness.
- Case reports link ashwagandha to liver injury, usually weeks after starting, with worse outcomes in people who already had cirrhosis.
- Some multi-ingredient ashwagandha products, including two we carry, say on the label not to use them with alcohol.
- Claims that ashwagandha eases hangovers or cravings rest on rat studies, not human trials.
Ashwagandha and alcohol: is there a known interaction?
There is no formal interaction study. Ashwagandha (Withania somnifera) is a shrub whose root extract is sold for stress and sleep, and our main ashwagandha guide covers that research. The National Center for Complementary and Integrative Health (NCCIH) page on ashwagandha does not mention alcohol at all. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) keeps a list of medicines and herbs that interact with alcohol; it names chamomile, valerian and lavender for increased drowsiness and kava for liver damage, but ashwagandha is not on it.
Not being on a list is not the same as being safe together. It mostly means nobody has studied the combination. The useful question is therefore what each one does on its own, and where those effects overlap.
| Concern | Ashwagandha | Alcohol | Why it matters together |
|---|---|---|---|
| Drowsiness | Listed as a side effect by NCCIH and MSKCC | Causes drowsiness and poor coordination | Effects may add up, especially before driving |
| Liver | Rare case reports of liver injury | Heavy drinking can damage the liver over time | Two separate strains on the same organ |
| Stomach | Can cause stomach upset, nausea or diarrhea | Irritates the stomach lining | More chance of an upset stomach |
| Medicines | May interact with sedatives, thyroid and diabetes medicines | Interacts with many medicines | More moving parts to check with a pharmacist |
Why drowsiness is the main concern
Memorial Sloan Kettering Cancer Center (MSKCC) describes ashwagandha as having sedative and GABAergic properties and warns that it may have additive effects with sedative drugs such as benzodiazepines and barbiturates. NCCIH lists drowsiness among its possible side effects and says it may interact with sedatives. France’s food safety agency, ANSES, went further in 2024 and advised against ashwagandha for people taking medicines that depress the central nervous system.
Alcohol produces drowsiness and loss of coordination on its own, and NIAAA notes that sedating herbs taken with alcohol can increase drowsiness. Nobody has measured how much extra sleepiness ashwagandha adds, and the answer probably varies with the product. Many ashwagandha formulas sold for sleep also contain melatonin, valerian or other calming ingredients, which is one reason their labels warn against alcohol, driving and operating machinery. NIAAA adds that older adults are at particularly high risk of alcohol and medicine interactions, because aging slows how the body breaks down alcohol.
Ashwagandha, alcohol and your liver
Ashwagandha liver injury is rare, but it is documented. A 2020 case series in Liver International described five people from Iceland and the US who developed jaundice two to twelve weeks after starting ashwagandha; none had liver failure, and liver tests returned to normal within one to five months in the four who were followed. A 2023 report from India described 23 patients, and three of the five who already had chronic liver disease developed liver failure and died. A 2026 scoping review that pooled 25 published cases concluded that people with advanced chronic liver disease should be counseled to avoid ashwagandha.
Alcohol is processed by the liver, and MedlinePlus explains that alcohol-associated liver disease most often follows years of heavy drinking. No study shows that drinking makes ashwagandha liver injury more likely, but the overlap matters for anyone who drinks heavily or already has liver problems. Signs worth reporting to a clinician include yellowing of the skin or eyes, dark urine, itching and unusual tiredness. Supplements sold for liver support do not offset either risk; our article on liver cleanse supplements explains why.
Thyroid, blood sugar and other medicines
The NIH Office of Dietary Supplements (ODS) notes that ashwagandha may affect thyroid hormone levels and may interact with thyroid, diabetes, blood pressure, immune-suppressing and sedative medicines. NCCIH says it is not recommended for people with thyroid or autoimmune disorders or for anyone about to have surgery. Alcohol adds its own layer here: the NIDDK says it can make blood glucose harder to keep steady and can hide the first symptoms of low blood sugar, which matters for people on diabetes medicines. If you take any prescription medicine, ask your pharmacist about ashwagandha and alcohol together rather than looking at each separately.
Can you drink on ashwagandha?
Because there are no studies, there is no evidence-based answer to how much, or how soon. A few practical points come from labels and official guidance:
- Read your product label first. If it says not to use with alcohol, follow it.
- Do not drive or operate machinery if you feel drowsy, whatever the cause.
- Avoid both during pregnancy: NCCIH says ashwagandha should be avoided in pregnancy, and the Dietary Guidelines for Americans say pregnant women should not drink.
- People with liver disease, thyroid conditions or a history of heavy drinking should talk to a clinician before using ashwagandha at all.
- If you also take a GLP-1 medicine, our guide to GLP-1 drugs and alcohol covers what those labels say.
Does ashwagandha help with drinking or hangovers?
You may see claims that ashwagandha reduces the urge to drink. These come from animal research. In a 2014 study in rats, a root extract reduced how hard the animals worked for alcohol, but it also reduced their interest in a sweet saccharin solution, so the effect was not specific to alcohol. No human trial has tested ashwagandha for drinking. For hangovers, a 2005 review in the BMJ found no compelling evidence that any remedy works, and a 2022 review of 21 trials rated every result as very low quality; ashwagandha was not among the remedies with a positive finding in either review. NIAAA says no hangover remedy has been scientifically proven and only time helps.
People often reach for ashwagandha during stressful periods, and stress is also a common reason to drink more. Our guide to cortisol and stress supplements looks at what that research shows. If you are worried about your drinking, or someone else’s, help is free and confidential. The SAMHSA National Helpline (1-800-662-4357) offers referrals and information 24 hours a day in English and Spanish, and you can call or text 988 to reach the 988 Lifeline, which also supports people with alcohol or drug use concerns. Stopping suddenly after heavy daily drinking can cause withdrawal, which MedlinePlus says can become a medical emergency; seizures, hallucinations, severe confusion, fever or an irregular heartbeat mean calling 911.
Labels we carry that mention alcohol
Ashwagandha in our catalog appears inside multi-ingredient formulas, and both examples below warn against alcohol on the label:
- InnoSupps Night Shred lists KSM-66 ashwagandha root extract with melatonin, magnesium, 5-HTP and a valerian and chamomile blend. The label says not to use it with alcoholic beverages or when driving, not to use it if pregnant or nursing, and to stop two weeks before surgery.
- cbdMD Broad Spectrum CBD PM Softgels include ashwagandha root in a proprietary blend with CBD, CBN and melatonin. The label warns that they may cause drowsiness and says not to combine them with alcohol or medication.
Magnesium is another common ingredient in these formulas; our companion article on magnesium and alcohol covers how drinking affects magnesium levels.
Frequently Asked Questions
Is it safe to mix ashwagandha and alcohol?
It has not been studied. Both can cause drowsiness and both have been linked to liver injury, so the cautious choice is to avoid combining them and to follow any alcohol warning on your product label.
Can you drink on ashwagandha?
There is no tested safe amount or waiting time. If you drink, ask a pharmacist how your specific product and medicines fit together, and never drive if you feel drowsy.
Does ashwagandha damage the liver?
Rarely. Published case reports describe liver injury, usually weeks after starting, that mostly resolved after stopping. People with existing liver disease had the most serious outcomes.
Why do some ashwagandha products say not to use with alcohol?
Many contain melatonin, valerian or other sedating ingredients alongside ashwagandha. Alcohol can add to drowsiness, so the labels warn against combining them.
Does ashwagandha help with hangovers?
There is no human evidence that it does. Reviews of hangover trials found no remedy with convincing results, and NIAAA says only time helps.
Can ashwagandha help someone cut back on drinking?
Only rat studies have looked at this. Anyone worried about their drinking can call the free SAMHSA National Helpline or call or text 988.
Questions about a label? Contact us or read our Buyer’s Guide. Follow the label and ask a healthcare provider before starting any supplement, especially if you take medicines or drink alcohol regularly. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Last reviewed October 2026.
Related guides: Ashwagandha Benefits, Side Effects and Safety: What Studies Show, Cortisol Belly: Stress, Belly Fat and What Cortisol Supplements Show, Liver Cleanse Supplements: What Is Inside, What Research Measured and Safety Risks.