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Dietary supplement

Vitex Fruit 400 mg Ingredients & Drug Interactions

by Nature's Way

Vitex Fruit 400 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Vitex Fruit 400 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Vitex Fruit 400 mg is a dietary supplement by Nature's Way with 1 active ingredient. Its ingredients are commonly taken for premenstrual syndrome (pms), irregular or absent menstrual periods, cyclical breast pain (mastalgia).Based on those ingredients, 121 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Vitex agnus-castus. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Vitex Fruit 400 mg by Nature's Way

Ask about any prescription or over-the-counter medication and we check it for interactions with Vitex Fruit 400 mg by Nature's Way — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Vitex Fruit 400 mg by Nature's Way

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: vitex agnus-castus (also called chasteberry), a fruit extract at 400 mg per capsule. The inactive ingredients are hypromellose, magnesium stearate, and silica — standard capsule materials and binders.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: women's traditional menstrual cycle support.
  • We looked for evidence on: Premenstrual syndrome (PMS), Premenstrual dysphoric disorder (PMDD), Dysmenorrhea, Amenorrhea, Menorrhagia, Mastalgia — and 4 related terms.
  • The strongest evidence on file: Vitex Agnus-castus is rated "Possibly Effective" for Mastalgia (Natural Medicines).
  • Also on file: Vitex Agnus-castus is rated "Possibly Effective" for Premenstrual syndrome (PMS).
  • Also on file: Vitex Agnus-castus is rated "Insufficient Reliable Evidence To Rate" for Amenorrhea, Fibrocystic breast disease, Hyperprolactinemia, Menopausal symptoms, and more.

Vitex is possibly effective for premenstrual syndrome (PMS) and mastalgia (breast tenderness). For fractures, the evidence suggests it's possibly ineffective.

For aging skin, anxiety, and premenstrual dysphoric disorder (PMDD), there isn't enough reliable evidence yet to say whether it works.

The evidence, ingredient by ingredient Vitex Agnus-castus

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Vitex is generally well tolerated in the short term, though the safety notes recommend using it under guidance because it may affect hormones. Common side effects reported in users include diarrhea, fatigue, headache, insomnia, irregular menstruation, nausea, stomach pain, and vomiting.

Skin reactions such as rash, itching, acne, and eczema have also been reported, as has irregular or prolonged menstrual bleeding. The safety data advises against using vitex during pregnancy because of its possible hormonal effects and limited safety information.

It's also not recommended while breastfeeding, since it may influence milk-related hormones and safety is unclear.

Side effects, ingredient by ingredient Vitex Agnus-castus

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Vitex Agnus-castus.
  • The most serious interaction on file is rated Moderate.
  • For scale: 121 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you start, double-check with your pharmacist if you take antipsychotic drugs, dopamine agonists, metoclopramide (Reglan), oral contraceptives, or estrogen-containing medications like hormone replacement therapy. Vitex may reduce how well these medications work.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Vitex may help with PMS and breast tenderness if the evidence supports your situation. Don't use it if you're pregnant or breastfeeding.

If you take any medication for mood, nausea, birth control, or hormone therapy, talk to your pharmacist first — this product could interfere with how those drugs work.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Aug 22, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Vitex Fruit 400 mg, straight from the product label.

Brand Nature's Way
Barcode (UPC) 033674119235
Net contents 320 Vegan Capsule(s)
Market status On market
Date entered into DSLD Aug 22, 2024
DSLD ID 317044
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult Female (18 - 50 Years), Seniors/Mature (>50 Years) - Women ONLY, Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Vitex Fruit 400 mg by Nature's Way, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
320
UPC/BARCODE
033674119235
IngredientAmount% DV
Vitex agnus-castus400 mg--

Other ingredients: Hypromellose, Magnesium Stearate, Silica

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation

Used for centuries for traditional monthly cycle support. Bottled and tested in the USA

Vegan Gelatin Free

Vegan Gelatin Free

Women's traditional menstrual cycle support Plant powered

Non GMO Project Verified nongmoproject.org

Gluten free. No wheat, corn, soy, dairy, gelatin, or artificial colors or flavors.

Formula

Vitex fruit, also known as chasteberry, is native to the mediterranean.

Vitex fruit 400 mg per serving

Traditional women's health support

General Statements

Explore more products at Naturesway.com Questions? 1-800-962-8873 / naturesway.com Bottle made from 50% post-consumer recycled plastic

Brand IP Statement(s)

Copyright 2023

Seals/Symbols

Vegan Gelatin Free

Non GMO Project Verified nongmoproject.org

FDA Disclaimer Statement

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.

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Recommendation: Adults take 1 capsule two or three times daily for 8-12 weeks. Thereafter, take 1 capsule daily. Best results obtained with continuous use.

Precautions

If you are pregnant, nursing, or taking any medications, consult a healthcare professional before use.

Keep out of reach of children.

Safety sealed with inner seal. Do not use if seal is broken or missing.

Storage

Keep tightly closed. Store at room temperature. Avoid excessive heat and direct sunlight.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Vitex Fruit 400 mg by Nature's Way label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Vitex Fruit 400 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Vitex Fruit 400 mg by Nature's Way

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container320 Amounts shown are per serving.

Vitex agnus-castus

Interacts with
121 drugs
400 mg per serving

Vitex (chasteberry) is an herbal remedy most often used for PMS and menstrual cycle problems, and the strongest evidence is for easing some PMS sympto...

Vitex agnus-castus monograph & interactions

Other (inactive) ingredients: Hypromellose, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Vitex Fruit 400 mg by Nature's Way Drug Interactions

Want to check YOUR meds against Vitex Fruit 400 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
121Drugs
121 Moderate

Ingredients driving the most interactions

Vitex agnus-castus 121

Individual Drug Interactions

The ingredients in Vitex Fruit 400 mg interact with 121 drugs. Click any drug to see the details.

1 of the 1 ingredient in Vitex Fruit 400 mg interact with drugs. Each result below shows which ingredient is responsible. Vitex agnus-castus

Each ingredient & the kinds of drugs it affects

For each ingredient in Vitex Fruit 400 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Vitex agnus-castus5 drug types · 121 drugs

Antipsychotic Drugs

Theoretically, vitex agnus-castus could interfere with the activity of antipsychotic drugs.
Vitex agnus-castus might interfere with the action of dopamine antagonists such as antipsychotic drugs due to its dopamine agonist effects.

Likelihood Possible Evidence D
Contraceptive Drugs

Theoretically, vitex agnus-castus could interfere with oral contraceptives.
Vitex agnus-castus might interfere with the efficacy of oral contraceptives due to possible hormone modulating activity.

Likelihood Possible Evidence B
Dopamine Agonists

Theoretically, vitex agnus-castus could interfere with dopamine agonists.
Vitex agnus-castus might potentiate the actions of dopaminergic agonists due to possible dopaminergic effects.

Likelihood Possible Evidence D
Estrogens

Theoretically, vitex agnus-castus could interfere with the activity of estrogens.
Vitex agnus-castus has hormone modulating activity that can interfere with the efficacy of hormone replacement therapy.

Likelihood Probable Evidence D
Metoclopramide (Reglan)

Theoretically, dopaminergic effects of vitex agnus-castus could interfere with metoclopramide.
Vitex agnus-castus might interfere with the action of dopamine antagonists such as metoclopramide due to its possible dopaminergic effects.

Likelihood Possible Evidence D
Vitex agnus-castus full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Vitex Fruit 400 mg, from the product label.

Nature's Way

See all Nature's Way products
Name
Nature's Way Brands, LLC
City
Green Bay
State
WI
ZipCode
54311
Phone Number
1-800-962-8873
Web Address
naturesway.com
Pharmacist Counseling Corner

Vitex Fruit 400 mg by Nature's Way: Common Questions

Does Vitex Fruit 400 mg by Nature's Way interact with any medications?
Yes. Based on its ingredients, Vitex Fruit 400 mg has a known interaction with 121 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Vitex Fruit 400 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this if I'm on birth control?
Vitex may interfere with how well oral contraceptives work by affecting hormone processing. Talk to your pharmacist or doctor before adding it — you'll want to discuss whether it's right for you and if your birth control needs adjustment.
Is it safe to use vitex while I'm breastfeeding?
No — the safety data advises against breastfeeding while taking vitex. It may influence hormones related to milk production, and there isn't enough safety information to be sure. Wait until you've stopped breastfeeding before starting it.
What side effects should I watch for?
The most common ones are diarrhea, fatigue, headache, insomnia, irregular menstruation, nausea, and stomach pain. Skin reactions like rash and acne, and changes in menstrual bleeding, have also been reported. If any of these bother you, stop and call your pharmacist.
Does vitex actually work for PMS?
The evidence suggests it's possibly effective for PMS symptoms. It's also possibly effective for mastalgia — breast tenderness. For other uses like anxiety or PMDD, there isn't enough reliable evidence yet.
Can I take this with my antipsychotic medication?
Vitex may interfere with how antipsychotic drugs work by affecting dopamine in your brain. Don't start vitex without checking with your pharmacist or doctor first — they'll help you figure out if it's safe for you.
How long can I safely take vitex?
Vitex is often well tolerated in the short term, but because it may affect hormones, the safety data recommends using it under guidance. Talk to your pharmacist about how long is appropriate for your situation.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Vitex Fruit 400 mg is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Vitex Fruit 400 mg label
Go deeper

The Full Monographs Behind Vitex Fruit 400 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Vitex Agnus-castus

Interacts with 121 drugs

Vitex (chasteberry) is an herbal remedy most often used for PMS and menstrual cycle problems, and the strongest evidence is for easing some PMS symptoms. It is generally well tolerated by ma...

Read the full Vitex Agnus-castus monograph →
Sources

Sources & How We Checked

Vitex Fruit 400 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 23 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Vitex Agnus-castus 23 references
  1. Wuttke W. Dopaminergic action of extracts of Agnus Castus. Forschende Komplementarmedizen 1996;3:329-30.
  2. Jarry H, Leonhardt S., Gorkow C, Wuttke W. In vitro prolactin but not LH and FSH release is inhibited by compounds in extracts of Agnus Castus: direct evidence for a dopaminergic principle by the dopamine receptor assay. Exp Clin Endocrinol 1994;102:448- PubMed
  3. Schellenberg R. Treatment for the premenstrual syndrome with agnus castus fruit extract: prospective, randomised, placebo-controlled study. BMJ 2001;322:134-7. PubMed
  4. Lauritzen CH, Reuter HD, Repges R, et al. Treatment of premenstrual tension syndrome with Vitex agnus castus: Controlled-double blind versus pyridoxine. Phytomedicine 1997;4:183-9.
  5. Berger D, Schaffner W, Schrader E, et al. Efficacy of Vitex agnus castus L. extract Ze 440 in patients with premenstrual syndrome (PMS). Arch Gynecol Obstet 2000;264:150-3.
  6. Loch EG, Selle H, Boblitz N. Treatment of premenstrual syndrome with a phytopharmaceutical formulation containing Vitex agnus castus. J Womens Health Gend Based Med 2000;9:315-20. PubMed
  7. Meier B, Berger D, Hoberg E, et al. Pharmacological activities of Vitex agnus-castus extracts in vitro. Phytomedicine 2000;7:373-81. PubMed
  8. Liu J, Burdette JE, Xu H, et al. Evaluation of estrogenic activity of plant extracts for the potential treatment of menopausal symptoms. J Agric Food Chem 2001;49:2472-9.. PubMed
  9. Wuttke W, Jarry H, Christoffel V, et al. Chaste tree (Vitex agnus-castus)--pharmacology and clinical indications. Phytomedicine 2003;10:348-57. PubMed
  10. Atmaca M, Kumru S, Tezcan E. Fluoxetine versus Vitex agnus castus extract in the treatment of premenstrual dysphoric disorder. Hum Psychopharmacol 2003;18:191-5..
  11. Daniele C, Thompson Coon J, Pittler MH, Ernst E. Vitex agnus castus: a systematic review of adverse events. Drug Saf 2005;28:319-32..
  12. Halaska M, Beles P, Gorkow C, Sieder C. Treatment of cyclical mastalgia with a solution containing a Vitex agnus castus extract: results of a placebo-controlled double-blind study. Breast 1999;8:175-81. PubMed
  13. Prilepskaya VN, Ledina AV, Tagiyeva AV, Revazova FS. Vitex agnus castus: Successful treatment of moderate to severe premenstrual syndrome. Maturitas 2006;55 Suppl 1:S55-63. DOI
  14. Ma, L., Lin, S., Chen, R., and Wang, X. Treatment of moderate to severe premenstrual syndrome with Vitex agnus castus (BNO 1095) in Chinese women. Gynecol.Endocrinol. 2010;26(8):612-616. PubMed
  15. Ma, L., Lin, S., Chen, R., Zhang, Y., Chen, F., and Wang, X. Evaluating therapeutic effect in symptoms of moderate-to-severe premenstrual syndrome with Vitex agnus castus (BNO 1095) in Chinese women. Aust.N.Z.J Obstet.Gynaecol. 2010;50(2):189-193. PubMed
  16. Dinç T, Coskun F. Comparison of fructus agni casti and flurbiprofen in the treatment of cyclic mastalgia in premenopausal women. Ulus Cerrahi Derg. 2014 Mar 1;30(1):34-8 PubMed
  17. Momoeda M, Sasaki H, Tagashira E, Ogishima M, Takano Y, Ochiai K. Efficacy and safety of Vitex agnus-castus extract for treatment of premenstrual syndrome in Japanese patients: a prospective, open-label study. Adv Ther. 2014 Mar;31(3):362-73. PubMed
  18. Yavarikia P, Shahnazi M, Hadavand Mirzaie S, Javadzadeh Y, Lutfi R. Comparing the effect of mefenamic Acid and vitex agnus on intrauterine device induced bleeding. J Caring Sci. 2013 Aug 31;2(3):245-54.
  19. Van Die MD, Burger HC, Teede HG, Bone KM. Vitex agnus castus extracts for female reproductive disorders: a systematic review of clinical trials. Planta Med 2013:79:562-575. PubMed
  20. Ooi SL, Watts S, McClean R, Pak SC. Vitex agnus-castus for the treatment of cyclic mastalgia: A systematic review and meta-analysis. J Womens Health (Larchmt). 2020;29(2):262-278. PubMed
  21. Mollazadeh S, Mirghafourvand M, Abdollahi NG. The effects of Vitex agnus-castus on menstrual bleeding: A systematic review and meta-analysis. J Complement Integr Med. 2019;17(1). pii: /j/jcim.2019.17.issue-1/jcim-2018-0053/jcim-2018-0053.xml.
  22. Najib FS, Poordast T, Mahmudi MS, Shiravani Z, Namazi N, Omrani GR. Does Vitex Agnus-Castus L. Have Deleterious Effect on Fertility and Pregnancy Outcome? An Experimental Study on Rats for Prediction of Its Safety. J Pharmacopuncture 2022;25(2):106-113. PubMed
  23. Somuncu E, Solak IHA. Colonic Obstruction Secondary to Phytobezoar Caused by Vitex Agnus-Castus Seeds: A Case Report. J Coll Physicians Surg Pak 2022;32(8):S115-S117. PubMed

See these in context on the Vitex Agnus-castus monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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