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Dietary supplement

Passion Flower 250 mg Ingredients & Drug Interactions

by NaturesPlus Herbal Actives

Passion Flower 250 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 Passion Flower 250 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

Passion Flower 250 mg is a dietary supplement by NaturesPlus Herbal Actives with 1 active ingredient. Its ingredients are commonly taken for anxiety and stress, trouble sleeping, restlessness.Based on those ingredients, 836 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Passionflower. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Passion Flower 250 mg by NaturesPlus Herbal Actives

Ask about any prescription or over-the-counter medication and we check it for interactions with Passion Flower 250 mg by NaturesPlus Herbal Actives — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Passion Flower 250 mg by NaturesPlus Herbal Actives

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 Sep 3, 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: passionflower (250 mg per capsule). It's traditionally used to help with sleep and anxiety.

The capsule also contains inactive ingredients — cellulose, dicalcium phosphate, magnesium stearate, and silica — which are fillers and binders that hold the supplement together.

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: Nutritional support for natural relaxation.
  • We looked for evidence on: Stress, Insomnia, Pre-procedural anxiety, Adjustment disorders, anxiety, nervousness — and 2 related terms.
  • The strongest evidence on file: Passion Flower is rated "Possibly Effective" for Pre-procedural anxiety (Natural Medicines).
  • Also on file: Passion Flower is rated "Possibly Effective" for Insomnia.
  • Also on file: Passion Flower is rated "Insufficient Reliable Evidence To Rate" for Adjustment disorders, Stress.

Passion flower is rated possibly effective for insomnia and pre-procedural anxiety (calming nerves before a medical procedure). The evidence isn't established for ADHD or benzodiazepine withdrawal — there isn't enough reliable data to say whether it works for those uses.

The evidence, ingredient by ingredient Passion Flower

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.

Passion flower is generally well tolerated for short-term use, but it commonly causes drowsiness, dizziness, and confusion. Rare cases of allergy-like reactions (rash, swelling) and very serious reactions (severe nausea, vomiting, heart rhythm changes) have been reported in individual cases, though these are uncommon.

The safety data advises against use during pregnancy due to lack of safety information and possible effects on the uterus. There isn't enough safety information available for breastfeeding — talk with your doctor or pharmacist about whether it's right for you if you're nursing.

Side effects, ingredient by ingredient Passion Flower

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 — Passion Flower.
  • The most serious interaction on file is rated Moderate.
  • For scale: 837 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 taking this product, check whether you use sedative drugs (sleep aids, anti-anxiety medications, or other CNS depressants) — combining them with passion flower may cause dangerous additive drowsiness and sedation. Also double-check any medications that depend on specific transport proteins (OATP substrates) or are broken down by the liver enzyme CYP3A4, as passion flower may alter how your body absorbs or metabolizes them.

Use the interaction checker on this page with your full medication list.

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.

Passion Flower 250 mg may help if you're struggling with sleep or pre-procedure anxiety, but drowsiness is common and it can interact with sedative medications and others. If you take any prescription or over-the-counter drugs, check them against the interactions listed here and confirm with your doctor or pharmacist before starting.

Pregnant or breastfeeding individuals should discuss it with their healthcare provider first.

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 Nov 22, 2023.

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 Passion Flower 250 mg, straight from the product label.

Brand NaturesPlus Herbal Actives
Barcode (UPC) 097467072367
Net contents 60 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Nov 22, 2023
DSLD ID 298723
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), No Allergies, 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 Passion Flower 250 mg by NaturesPlus Herbal Actives, 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
60
UPC/BARCODE
097467072367
IngredientAmount% DV
Passionflower250 mg--

Other ingredients: Cellulose, Dicalcium Phosphate, 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

Nutritional support for natural relaxation.

Guaranteed maximum potency: Each herbal actives formula is scientifically standardized to the highest level of active principles.

Maximum Guaranteed Potency

Prescription quality

Gluten Free Free from artificial colors and preservatives. Free from all of the major allergens identified in the U.S. Food Allergen Labeling and Consumer Protection Act.

Vegan

Formula

Each Herbal Actives Passionflower capsules, providing the greatest concentration of active botanical principles, maximize the synergistic benefits of the whole flower, which naturally contains glycosides and harmane alkaloids (passiflorine, aribine, loturine and yageine).

250 MG / 3.5% - 4% flavonoids

General Statements

HerbaShield: An exclusive purity and safety system including light-resistant bottle, airtight inner seal moisture-absorbing packet, tamper-evident safety cap and tamper-proof neck seal.

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement offering the consistent benefits of exact potency, one capsule daily or as recommended by your health care professional.

Precautions

Note: If you are pregnant or nursing, consult your health care professional before using any herbal product.

This is not a prescription product. It is a dietary supplement made with the highest possible quality standards.

Printed HerbaShield inner seal and neck seal. Do not use if either seal is missing or broken.

Keep out of the reach of children.

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Brand IP Statement(s)

Herbal Actives is a registered trademark of Natural Organics, Inc. in the US and other countries. HerbaShield

Vcaps is a trademark of Capsugel Copyright Natural Organics

FDA Statement of Identity

Standardized Botanical Supplement

Storage

Keep tightly closed in a cool, dry place.

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

See for yourself

Passion Flower 250 mg by NaturesPlus Herbal Actives label

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

Passion Flower 250 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 Passion Flower 250 mg by NaturesPlus Herbal Actives

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 container60 Amounts shown are per serving.

Passionflower

Interacts with
836 drugs
250 mg per serving Form: Flavonoids, Isovitexin

Passion flower is a traditional calming herb that many people use for anxiety and sleep. Early studies hint it may help with mild anxiety and restless...

Passionflower monograph & interactions

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

Interaction report

Passion Flower 250 mg by NaturesPlus Herbal Actives Drug Interactions

Want to check YOUR meds against Passion Flower 250 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
836Drugs
248 Moderate 588 Minor

Ingredients driving the most interactions

Passionflower 836

Individual Drug Interactions

The ingredients in Passion Flower 250 mg interact with 836 drugs. Click any drug to see the details.

1 of the 1 ingredient in Passion Flower 250 mg interact with drugs. Each result below shows which ingredient is responsible. Passionflower

Each ingredient & the kinds of drugs it affects

For each ingredient in Passion Flower 250 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.

Passionflower3 drug types · 836 drugs

Cns Depressants

Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Research in animals and humans shows that passion flower has sedative effects which can be additive when used with sedative medications like lorazepam.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
In vitro research suggests that passion flower can induce CYP3A4 enzymes, albeit to a much lower degree than rifampin, a known CYP3A4 inducer.

Likelihood Possible Evidence D
Organic Anion-Transporting Polypeptide Substrates (Oatp)

Theoretically, passion flower might reduce the bioavailability of OATP2B1 and OATP1A2 substrates.
In vitro research shows that the passion flower constituents apigenin and vitexin inhibit OATP2B1 and OATP1A2. This inhibition may be dose-dependent. One specific high-flavonoid passion flower extract (Valverde) seems to inhibit OATP2B1 and OATP1A2, while another extract with a lower flavonoid concentration (Arkocaps) shows less potent inhibition. OATPs are responsible for the uptake of drugs and other compounds into the body; however, the specific activities of OATP2B1 and OATP1A2 are not well characterized.

Likelihood Possible Evidence D
Passionflower full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Passion Flower 250 mg, from the product label.

NaturesPlus Herbal Actives

See all NaturesPlus Herbal Actives products
Name
Natural Organics Laboratories, Inc. makers of NaturesPlus
Street Address
9500 New Horizons Blvd.
City
Amityville
State
New York
ZipCode
11701
Web Address
www.naturesplus.com
Pharmacist Counseling Corner

Passion Flower 250 mg by NaturesPlus Herbal Actives: Common Questions

Does Passion Flower 250 mg by NaturesPlus Herbal Actives interact with any medications?
Yes. Based on its ingredients, Passion Flower 250 mg has a known interaction with 836 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Passion Flower 250 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.
Will passion flower make me drowsy?
Yes, drowsiness is one of the most commonly reported side effects. You may also experience dizziness or confusion, especially if you're new to the product. Don't drive or operate machinery until you know how it affects you.
Can I take this if I'm pregnant?
The safety data advises against it during pregnancy due to lack of safety information and possible effects on the uterus. Talk with your doctor or pharmacist about your specific situation before taking it.
Is it safe while breastfeeding?
There isn't enough safety information available to know either way. Discuss it with your doctor or pharmacist to decide what's best for you and your baby.
What is passion flower supposed to do?
It's possibly effective for helping with insomnia and calming anxiety before medical procedures. The evidence isn't established for ADHD or helping people come off benzodiazepines.
Can I take this with my sleep medication?
Not without checking first. Passion flower is sedative and combining it with sleep aids or anti-anxiety drugs can cause serious additive drowsiness. Check your exact medications with your doctor or pharmacist before adding this product.

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

Not sure if Passion Flower 250 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.

Passion Flower 250 mg label
Go deeper

The Full Monographs Behind Passion Flower 250 mg’s Ingredients

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

Herb & supplement monograph

Passion Flower

Interacts with 836 drugs

Passion flower is a traditional calming herb that many people use for anxiety and sleep. Early studies hint it may help with mild anxiety and restlessness, but the evidence is limited and mo...

Read the full Passion Flower monograph →
Sources

Sources & How We Checked

Passion Flower 250 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 19 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.

Passion Flower 19 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  3. Fisher AA, Purcell P, Le Couteur DG. Toxicity of Passiflora incarnata L. J Toxicol Clin Toxicol 2000;38:63-6.
  4. Akhondzadeh S, Naghavi HR, Shayeganpour A, et al. Passionflower in the treatment of generalized anxiety: a pilot double-blind randomized controlled trial with oxazepam. J Clin Pharm Ther 2001;26:363-7. PubMed
  5. Farnsworth N, Bingel A, Cordell G, et al. Potential value of plants as sources of new antifertility agents I. J Pharm Sci 1975;64:535-98. DOI
  6. Mori A, Hasegawa K, Murasaki M, et al. Clinical evaluation of Passiflamin (passiflora extract) on neurosis - multicenter double blind study in comparison with mexazolam. Rinsho Hyoka (Clinical Evaluation) 1993;21:383-440.
  7. Miyasaka LS, Atallah AN, Soares BG. Passiflora for anxiety disorder. Cochrane Database Syst Rev 2007;(1):CD004518. DOI
  8. Speroni E., Minghetti A. Neuropharmacological activity of extracts from Passiflora incarnata. Planta Med. 1988;54:488-91.
  9. Capasso A., Sorrentino L. Pharmacological studies on the sedative and hypnotic effect of Kava kava and Passiflora extracts combination. Phytomedicine. 2005;12:39-45. PubMed
  10. Carrasco MC, Vallejo JR, Pardo-de-Santayana M, et al. Interactions of Valeriana officinalis L. and Passiflora incarnata L. in a patient treated with lorazepam. Phytother Res. 2009 Dec;23:1795-6.
  11. Smith, G. W., Chalmers, T. M., and Nuki, G. Vasculitis associated with herbal preparation containing Passiflora extract. Br J Rheumatol. 1993;32(1):87-88.
  12. Soulimani, R., Younos, C., Jarmouni, S., Bousta, D., Misslin, R., and Mortier, F. Behavioural effects of Passiflora incarnata L. and its indole alkaloid and flavonoid derivatives and maltol in the mouse. J Ethnopharmacol. 1997;57(1):11-20. PubMed
  13. Nojoumi M, Ghaeli P, Salimi S, Sharifi A, Raisi F. Effects of Passion Flower Extract, as an Add-On Treatment to Sertraline, on Reaction Time in Patients ?with Generalized Anxiety Disorder: A Double-Blind Placebo-Controlled Study. Iran J Psychiatry. 2016;1
  14. Rokhtabnak F, Ghodraty MR, Kholdebarin A, et al. Comparing the Effect of Preoperative Administration of Melatonin and Passiflora incarnata on Postoperative Cognitive Disorders in Adult Patients Undergoing Elective Surgery. Anesth Pain Med. 2016;7(1):e4123 PubMed
  15. Dantas LP, de Oliveira-Ribeiro A, de Almeida-Souza LM, Groppo FC. Effects of passiflora incarnata and midazolam for control of anxiety in patients undergoing dental extraction. Med Oral Patol Oral Cir Bucal. 2017;22(1):e95-e101. PubMed
  16. Ozturk Z, Kalayci CC. Pregnancy outcomes in psychiatric patients treated with passiflora incarnata. Complement Ther Med. 2018 Feb;36:30-32. PubMed
  17. da Cunha RS, Amorim KS, Gercina AC, et al. Herbal medicines as anxiolytics prior to third molar surgical extraction. A randomized controlled clinical trial. Clin Oral Investig. 2020. PubMed
  18. Schäfer AM, Gilgen PM, Spirgi C, et al. Constituents of Passiflora incarnata, but Not of Valeriana officinalis, Interact with the Organic Anion Transporting Polypeptides (OATP)2B1 and OATP1A2. Planta Med. 2021. PubMed
  19. Mazzari ALDA, Lacerda MG, Milton FA, et al. In vitro effects of European and Latin-American medicinal plants in CYP3A4 gene expression, glutathione levels, and P-glycoprotein activity. Front Pharmacol 2022;13:826395. PubMed

See these in context on the Passion Flower 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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