Interactions on record — worth a quick check against your medications. Based on 1 of 2 ingredients. Check your meds →
Dietary supplement

Passion Flower 400 mg Ingredients & Drug Interactions

by Maui Medicinal

Passion Flower 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 Passion Flower 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

Passion Flower 400 mg is a dietary supplement by Maui Medicinal with 2 active ingredients. 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 Passion Flower. 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 400 mg by Maui Medicinal

Ask about any prescription or over-the-counter medication and we check it for interactions with Passion Flower 400 mg by Maui Medicinal — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Passion Flower 400 mg by Maui Medicinal

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

Partial disclosure
Ingredient Transparency · database check
Partial

Most active ingredients list an amount, but at least one is hidden in a blend or missing.

Why this rating?
  • The label discloses an exact amount for 1 of its 2 active ingredients.
  • “Blend” is a proprietary blend — the label gives one combined amount (400 mg) without saying how much of each component you get.

Passion Flower 400 mg contains 2 active ingredients: Passion Flower and wildcrafted Passion Flower. Both deliver the herb's active constituents, including flavonoids like apigenin and vitexin, which are responsible for its effects on sleep and anxiety.

The capsule itself is made from vegetable material.

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

This product doesn't appear to be marketed for a specific use, so we graded Passion Flower's overall clinical evidence instead.

Moderate

Some clinical evidence supports Passion Flower for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Pre-procedural anxiety — rated "Possibly Effective" (Natural Medicines).
  • On file: Insomnia — rated "Possibly Effective" (Natural Medicines).

Passion Flower is rated Possibly Effective for insomnia and for easing anxiety before medical procedures or stressful events. There isn't enough reliable evidence yet to say whether it works for ADHD or to help people taper off benzodiazepines (a type of anti-anxiety medication), so those uses are unproven in our data.

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 over the short term, but drowsiness is the most common side effect—along with dizziness, confusion, and sensitivity reactions in some people. Rarely, high doses have caused nausea, vomiting, heart rhythm changes, and severe drowsiness; those cases resolved once the herb was stopped.

Passion Flower safety data in pregnancy is incomplete, so it's best avoided then due to possible effects on the uterus. There isn't enough information to know it's safe while breastfeeding, so it's advisable to skip it during that time too.

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 you take this, double-check with your doctor or pharmacist if you're on sedatives, tranquilizers, sleep aids, or benzodiazepines—Passion Flower can add to their effects. Also mention any medications metabolized by your liver, as the herb may theoretically affect how your body processes them.

The interaction data we have is theoretical for some of these; your pharmacist can tell you whether your specific drugs are affected.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glancePartially disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Passion Flower may help with sleep and pre-procedure anxiety, and most people tolerate it without trouble. If you take sedatives, anti-anxiety medications, or any chronic prescription drugs, check with your doctor or pharmacist before starting—the interaction with depressants is real.

Avoid it if you're pregnant or breastfeeding.

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

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Oct 23, 2020.

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 400 mg, straight from the product label.

Brand Maui Medicinal
Barcode (UPC) 673125161606
Net contents 60 Veg Cap(s)
Market status On market
Date entered into DSLD Oct 23, 2020
DSLD ID 235709
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten 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 400 mg by Maui Medicinal, 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
673125161606
IngredientAmount% DV
Blend400 mg--
Passion Flower0 NP--
wildcrafted Passion Flower400 mg--

Other ingredients: Vegetable Capsules

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.
FDA Statement of Identity

Dietary Supplement

Formulation

400mg per cap

Gluten free GMO free

Vegan

Suggested/Recommended/Usage/Directions

Suggested Use: As herbal nutrient support take 1 capsule once daily, or as directed.

Precautions

Keep out of reach of children

General Statements

800.936.6532

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

See for yourself

Passion Flower 400 mg by Maui Medicinal label

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

Passion Flower 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 Passion Flower 400 mg by Maui Medicinal

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Blend

400 mg per serving

Other (inactive) ingredients: Vegetable Capsules. These complete the product’s ingredient list but are not active constituents.

Interaction report

Passion Flower 400 mg by Maui Medicinal Drug Interactions

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

Ingredients driving the most interactions

Passion Flower 836

Individual Drug Interactions

The ingredients in Passion Flower 400 mg interact with 836 drugs. Click any drug to see the details.

1 of the 2 ingredients in Passion Flower 400 mg interact with drugs. Each result below shows which ingredient is responsible. Passion Flower

Each ingredient & the kinds of drugs it affects

For each ingredient in Passion Flower 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.

Passion Flower3 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
Passion Flower full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Passion Flower 400 mg, from the product label.

Maui Medicinal

See all Maui Medicinal products
Name
Maui Medicinal Herbs
Street Address
32 Alaiki Place
City
Makawao
State
HI
ZipCode
96768
Phone Number
808.572.9331
Web Address
Mauimedicinal.com
Pharmacist Counseling Corner

Passion Flower 400 mg by Maui Medicinal: Common Questions

Does Passion Flower 400 mg by Maui Medicinal interact with any medications?
Yes. Based on its ingredients, Passion Flower 400 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 400 mg contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 the most common side effect. You may also experience dizziness or confusion. That's why you shouldn't take it before driving or operating machinery, and why it's especially important to tell your doctor if you're already on sedatives.
Can I take this while pregnant?
No, you should avoid it. Safety data in pregnancy is incomplete, and there's concern about possible effects on the uterus. Talk to your doctor about safer alternatives if you need help with sleep or anxiety during pregnancy.
Is it safe to breastfeed while taking Passion Flower?
There isn't enough safety information to know for sure, so it's best not to take it while breastfeeding. Chat with your doctor or pharmacist about other options if you need support postpartum.
Will this help my insomnia?
Passion Flower is rated Possibly Effective for insomnia based on available evidence. Results vary from person to person, so give it time and talk with your doctor if it's not helping.
Can I use this for anxiety before a procedure?
Yes, it's rated Possibly Effective for easing anxiety before medical procedures. Let your healthcare team know you're taking it so they can factor in the drowsiness when planning your care.
What's the difference between the two Passion Flower ingredients listed?
One is labeled wildcrafted (harvested from the wild rather than cultivated), but both are the same herb and have the same interactions and effects. The dose and form are what matter most for how it works.

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

Not sure if Passion Flower 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.

Passion Flower 400 mg label
Go deeper

The Full Monographs Behind Passion Flower 400 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 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 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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