Interactions on record — worth a quick check against your medications. Based on 5 of 6 ingredients. Check your meds →
Dietary supplement

Hemp Passionflower Blend Ingredients & Drug Interactions

by Herb Pharm

Hemp Passionflower Blend label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Hemp Passionflower Blend 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

Hemp Passionflower Blend is a dietary supplement by Herb Pharm with 6 active ingredients. Its ingredients are commonly taken for plant-based protein source, heart health support, skin and hair health.Based on those ingredients, 1,194 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Hemp decarboxylated flowering top extract, Hops extract, Passionflower extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Hemp Passionflower Blend by Herb Pharm

Ask about any prescription or over-the-counter medication and we check it for interactions with Hemp Passionflower Blend by Herb Pharm — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Hemp Passionflower Blend by Herb Pharm

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

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 1 of its 6 active ingredients.
  • “Hemp decarboxylated flowering top extract” is listed as a grouped ingredient — the label gives one combined amount (144 mg) without saying how much of each component you get.
  • “Proprietary Extract Blend” is a proprietary blend — the label gives one combined amount (470 mg) without saying how much of each component you get.

This 6-ingredient blend combines passionflower extract, California poppy whole flowering plant extract, ziziphus extract, nutmeg seed extract, hops extract, and hemp decarboxylated flowering top extract in a base of certified organic cane alcohol and distilled water. Passionflower and California poppy are traditional relaxation herbs; nutmeg and hops add sedative properties; ziziphus is included for its traditional calming role; and the hemp extract rounds out the formula.

We cannot verify the cannabinoid content from the information on file.

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: Sleep support and relaxation.
  • We looked for evidence on: Insomnia, Anxiety, Stress, Adjustment disorders, Pre-procedural anxiety, Psychological well-being — 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: California Poppy is rated "Insufficient Reliable Evidence To Rate" for Anxiety, Insomnia.

Passionflower carries a 'Possibly Effective' rating for insomnia and pre-procedural anxiety — the two conditions where there's the most research backing. For alcohol use disorder and benzodiazepine withdrawal, evidence is too thin to rate.

California poppy, nutmeg, and hops all show insufficient reliable evidence to rate them for their traditional uses, including anxiety and insomnia. The evidence supporting this blend's effectiveness isn't established in our data.

The evidence, ingredient by ingredient Hemp Passion Flower California Poppy Nutmeg Hops

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 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Passionflower is generally well tolerated short-term but commonly causes drowsiness, dizziness, confusion, and sedation. A rare case of severe nausea, vomiting, prolonged heart-rhythm changes, and fainting-like episodes was reported after high doses.

Avoid passionflower during pregnancy due to lack of safety data and possible effects on the uterus; breastfeeding safety is unknown. California poppy has limited safety data; when combined with other herbs in trials, it caused muscular stiffness, morning fatigue, and nausea, though it's unclear if California poppy alone was the cause.

Avoid during pregnancy and breastfeeding. Nutmeg is safe as a food spice but unsafe at high medicinal doses — overdoses carry serious cardiovascular, neurological, and psychiatric risks including hallucinations and even death.

Food amounts are fine; concentrated supplements should be avoided. Hops is generally well tolerated short-term but may cause drowsiness; long-term safety is unclear.

Occupational exposure to hops dust causes chronic respiratory problems. Avoid hops during pregnancy; safety while breastfeeding is unknown.

Side effects, ingredient by ingredient Hemp Passion Flower California Poppy Nutmeg Hops

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?
  • 4 of the 4 matched ingredients can interact with medications — California Poppy, Nutmeg, Hops, Passion Flower.
  • The most serious interaction on file is rated Moderate.
  • For scale: 993 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 blend, check it against: CNS depressants like benzodiazepines, sedatives, and sleep aids (moderate risk of extra drowsiness); CYP1A2 substrate drugs like some antidepressants and other medications (moderate from nutmeg); anticholinergic and cholinergic drugs (moderate from nutmeg); phenobarbital (moderate from nutmeg); estrogen-replacement therapy or estrogens (moderate from hops); and CYP3A4 substrates like statins and blood pressure medications (minor from passionflower and hops). OATP substrates are also a minor concern from passionflower.

Use the medication checker on this page with your exact medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This blend is built for relaxation and sleep, with passionflower and hops as the main players. If you take any sedative medication — sleep aids, anxiety drugs, muscle relaxants, or others — you must check this product against your specific drugs first, as the sedation risk is real.

Pregnant people and those breastfeeding should avoid it. Talk to your pharmacist or doctor before starting, especially if you're on any prescription.

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

Assessment coverage: 4 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 21, 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 Hemp Passionflower Blend, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090700032753
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 273767
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Organic, 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 Hemp Passionflower Blend by Herb Pharm, 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:
0.7 mL
Maximum serving Sizes:
0.7 mL
Servings per container
42
UPC/BARCODE
090700032753
IngredientAmount% DV
Total Cannabinoids5 mg--
Passionflower extract0 NP--
California Poppy whole flowering plant extract0 NP--
Ziziphus extract0 NP--
Nutmeg seed extract0 NP--
Hemp decarboxylated flowering top extract144 mg--
Proprietary Extract Blend470 mg--
Hops extract0 NP--

Other ingredients: certified organic Cane Alcohol, distilled Water

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.
Suggested/Recommended/Usage/Directions

Suggested Use Shake well before using. Adults: Add 1 full squeeze of the dropper bulb to 2 oz. of water or juice, one hour before bed and again at bedtime. Best taken between meals.

Precautions

Caution: Do not take in pregnancy, nursing or if using medical drugs.

Not for use under 21 years of age.

Do not use if subject to drug testing.

Keep out of the reach of children

Warning: This product can expose you to chemicals including delta9-THC, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

Storage

Store away from heat & light

Formula

Cannabinoids 5 mg per serving With Ziziphus & Hops

Provides a minimum of 5 mg cannabinoids per serving Contains less than 0.1% total THC

FDA Statement of Identity

Herbal Supplement

Formulation

Gluten-free

Certified organic by Organic Certifiers

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

See for yourself

Hemp Passionflower Blend by Herb Pharm label

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

Hemp Passionflower Blend 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 Hemp Passionflower Blend by Herb Pharm

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container42 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.

Hemp decarboxylated flowering top extract

Interacts with
938 drugs
144 mg per serving

Hemp seeds and hemp seed oil are nutritious foods rich in protein, fiber, and healthy omega-3 and omega-6 fatty acids, and they are generally safe for...

Hemp decarboxylated flowering top extract monograph & interactions
  • › Total Cannabinoids

Proprietary Extract Blend

470 mg per serving

Other (inactive) ingredients: Certified organic Cane Alcohol, Distilled Water. These complete the product’s ingredient list but are not active constituents.

Interaction report

Hemp Passionflower Blend by Herb Pharm Drug Interactions

Want to check YOUR meds against Hemp Passionflower Blend?

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
1,194Drugs
540 Moderate 654 Minor

Ingredients driving the most interactions

Hemp decarboxylated flowering top extract 938
Hops extract 863
Passionflower extract 836
Nutmeg seed extract 528
California Poppy whole flowering plant extract 248

Individual Drug Interactions

The ingredients in Hemp Passionflower Blend interact with 1,194 drugs. Click any drug to see the details.

5 of the 6 ingredients in Hemp Passionflower Blend interact with drugs. Each result below shows which ingredient is responsible. Hemp decarboxylated flowering top extract Hops extract Passionflower extract Nutmeg seed extract California Poppy whole flowering plant extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Hemp Passionflower Blend with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Hemp decarboxylated flowering top extract6 drug types · 938 drugs

Estrogens

Theoretically, hemp might interfere with hormone therapy due to its estrogenic effects.
In an ovariectomized animal model, a diet containing hemp seed 1%, 2%, or 10% resulted in normalized plasma levels of 17-beta-estradiol. The mechanism of action for this effect is unclear.

Likelihood Possible Evidence D
Ace Inhibitors (Aceis)

Theoretically, consuming hemp seed protein isolate with ACE inhibitors might have additive effects and increase the risk of hypotension.
Hemp seed protein hydrolysate has shown ACE inhibitor-like effects in a hypertensive animal model. However, hempseed oil consumption does not seem to reduce blood pressure in humans. Until more is known, monitor blood pressure and potassium levels.

Likelihood Unlikely Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, hemp seed might increase the risk of bleeding when used concomitantly with anticoagulant/antiplatelet drugs.
In animal research, hemp seed at 5% of the diet inhibits platelet aggregation in vitro. However, in human research, taking hemp seed oil 2 grams daily for 12 weeks does not inhibit the aggregation of platelets in vitro.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, hemp seed protein may have additive effects with antihypertensive drugs.
In a hypertensive animal model, hemp seed protein hydrolysate reduced systolic blood pressure by a mechanism possibly involving the inhibition of renin and angiotensin converting enzyme (ACE) activities. However, there was no effect of hemp seed protein on blood pressure in normotensive animals. Furthermore, hempseed oil consumption does not seem to reduce blood pressure in humans.

Likelihood Unlikely Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, hemp might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that hemp induces CYP1A2 enzymes.

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

Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that hemp induces CYP3A4 enzymes.

Likelihood Possible Evidence D
Hemp decarboxylated flowering top extract full monograph & interactions

Hops extract4 drug types · 863 drugs

Cns Depressants

Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Some animal research shows that hops has sedative effects.

Likelihood Possible Evidence D
Estrogens

Theoretically, concomitant use of large amounts of hops might interfere with hormone replacement therapy due to competition for estrogen receptors.
In vitro research suggests that certain hops constituents can competitively bind to estrogen receptors. However, most hops extracts contain very small amounts of these constituents.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
In vitro research suggests that flavonoid constituents of hops inhibit CYP1A2 enzyme activity. However, a pharmacokinetic study in healthy postmenopausal patients shows that taking a standardized extract of spent hops containing prenylated phenols, as 59.5 mg twice daily for 2 weeks, does not affect levels of caffeine, a CYP1A2 probe substrate.

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

Theoretically, hops extract might alter metabolism of CYP3A4 substrates; however, this effect may not be clinically significant.
Animal research suggests that specific constituents of hops, called lupulones, can induce hepatic CYP3A4 enzyme activity. However, a pharmacokinetic study in healthy postmenopausal patients with normal metabolism shows that taking a standardized extract of spent hops containing prenylated phenols, as 59.5 mg twice daily for 2 weeks, decreases the concentration of alprazolam, a CYP3A4 probe substrate, by 7.6%. This reduction is unlikely to be clinically relevant.

Likelihood Possible Evidence D
Hops extract full monograph & interactions

Passionflower extract3 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 extract full monograph & interactions

Nutmeg seed extract5 drug types · 528 drugs

Anticholinergic Drugs

Theoretically, concomitant use of nutmeg and anticholinergic drugs might decrease the effectiveness of either agent.
Animal research suggests that nutmeg extract can inhibit acetylcholinesterase and might increase acetylcholine levels.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, concomitant use of nutmeg with other cholinergic drugs might have additive effects and increase the risk of cholinergic side effects.
Animal research suggests that nutmeg extract can inhibit acetylcholinesterase and might increase acetylcholine levels.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, nutmeg might increase the risk of additive sedation when taken with CNS depressants.
Animal studies suggest that nutmeg extracts and several volatile oils in nutmeg, such as methyleugenol, isoeugenol, safrole, myristicin, trimyristin, 1,8-cineole, and geranyl acetate, have sedative effects. One animal study shows that petroleum ether extracts of nutmeg can potentiate the effects of pentobarbital or phenobarbital. However, evidence from other animal research suggests that the nutmeg constituent myristicin can actually reduce sleeping time in rats pretreated with phenobarbital.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, nutmeg might decrease levels of drugs metabolized by CYP1A2.
Animal research suggests that intraperitoneal injections of myristicin, a constituent of nutmeg, can induce CYP1A2.

Likelihood Possible Evidence D
Phenobarbital (Luminal)

Theoretically, nutmeg might increase or decrease the effects and adverse effects of phenobarbital.
Some animal research suggests that myristicin, a constituent of nutmeg, can reduce sleeping time in rats pretreated with phenobarbital. However, other animal research suggests that petroleum ether extract of nutmeg can potentiate the effects of phenobarbital.

Likelihood Probable Evidence D
Nutmeg seed extract full monograph & interactions

California Poppy whole flowering plant extract1 drug type · 248 drugs

Cns Depressants

Theoretically, taking California poppy with drugs with sedative effects may increase the risk of sedative effects.
Laboratory research shows that California poppy has sedative effects.

Likelihood Possible Evidence D
California Poppy whole flowering plant extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Hemp Passionflower Blend, from the product label.

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Hemp Passionflower Blend by Herb Pharm: Common Questions

Does Hemp Passionflower Blend by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Hemp Passionflower Blend has a known interaction with 1,194 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Hemp Passionflower Blend contains 6 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.
Can I take this if I'm already on a sleep medication?
No — not without checking with your pharmacist first. Both passionflower and several other ingredients in this blend can make sedative drugs work too well, putting you at risk for excessive drowsiness or other side effects. Your pharmacist can tell you whether it's safe for your specific medication.
Is this safe during pregnancy?
No. Passionflower is possibly unsafe during pregnancy due to lack of safety data and potential effects on the uterus. California poppy and hops also lack safety information in pregnancy. You should avoid this blend if you're pregnant or trying to conceive — talk to your OB or pharmacist about safer options.
What are the most common side effects?
Drowsiness, dizziness, and confusion are the most frequent. A few people have reported confusion, sedation, and sensations of tingling or limb loss, especially at higher doses. If you notice unusual mental changes or heart symptoms, stop and contact your doctor or pharmacist.
Will this work for my anxiety or insomnia?
Passionflower has a 'Possibly Effective' rating for both anxiety before procedures and insomnia — meaning there's some research support but it's not a sure thing. The other ingredients don't have strong evidence in our data. It may help you, but results vary person to person.
Is the alcohol content a concern?
This is a liquid extract in certified organic cane alcohol and water. The alcohol acts as a preservative and extraction medium. If you need to avoid alcohol, talk to your pharmacist about alternative forms or whether small amounts in a diluted dose are acceptable for you.
Can I take this while breastfeeding?
No — passionflower, California poppy, and hops all lack enough safety data for breastfeeding. It's best to avoid this blend while nursing. Talk to your doctor or lactation consultant about whether a smaller single-ingredient option might be safer.

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

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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.

Hemp Passionflower Blend label
Go deeper

The Full Monographs Behind Hemp Passionflower Blend’s Ingredients

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

Herb & supplement monograph

Hemp

Interacts with 938 drugs

Hemp seeds and hemp seed oil are nutritious foods rich in protein, fiber, and healthy omega-3 and omega-6 fatty acids, and they are generally safe for most people as part of the diet. While...

Read the full Hemp monograph → 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 → Herb & supplement monograph

California Poppy

Interacts with 248 drugs

California poppy is a traditional herbal remedy used mainly for anxiety and sleep problems, often combined with other calming herbs. Human research is very limited, so its true benefits are...

Read the full California Poppy monograph → Herb & supplement monograph

Nutmeg

Interacts with 528 drugs

Nutmeg is a popular cooking spice that has long been used in traditional medicine for digestion and other complaints, but there is little solid human research to support its medicinal use. I...

Read the full Nutmeg monograph → Herb & supplement monograph

Hops

Interacts with 863 drugs

Hops are most often used for sleep and mild anxiety, frequently combined with valerian, but the human evidence is limited and not very strong. They are generally well tolerated when used sho...

Read the full Hops monograph →
Sources

Sources & How We Checked

Hemp Passionflower Blend'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 78 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 →

California Poppy 3 references
  1. Hanus M, Lafon J, Mathieu M. Double-blind, randomised, placebo-controlled study to evaluate the efficacy and safety of a fixed combination containing two plant extracts (Crataegus oxyacantha and Eschscholtzia californica) and magnesium in mild-to-moderate
  2. Paul LD, Springer D, Staack RF, et al. Cytochrome P450 isoenzymes involved in rat liver microsomal metabolism of californine and protopine. Eur J Pharmacol 2004;485:69-79. PubMed
  3. Paul LD, Maurer HH. Studies on the metabolism and toxicological detection of the Eschscholtzia californica alkaloids californine and protopine in urine using gas chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2003;789:43-5

See these in context on the California Poppy monograph →

Nutmeg 29 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
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See these in context on the Nutmeg monograph →

Hemp 12 references
  1. Kaul N, Kreml R, Austria JA, et al. A comparison of fish oil, flaxseed oil and hempseed oil supplementation on selected parameters of cardiovascular health in healthy volunteers. J Am Coll Nutr 2008;27:51-8. PubMed
  2. Saberivand A, Karimi I, Becker LA, et al. The effects of Cannabis sativa L. seed (hempseed) in the ovariectomized rat model of menopause. Methods Find Exp Clin Pharmacol. 2010;32(7):467-73. PubMed
  3. Girgih AT, Alashi A, He R, Malomo S, Aluko RE. Preventive and treatment effects of a hemp seed (Cannabis sativa L.) meal protein hydrolysate against high blood pressure in spontaneously hypertensive rats. Eur J Nutr. 2014;53(5):1237-46. PubMed
  4. Richard MN, Ganguly R, Steigerwald SN, Al-Khalifa A, Pierce GN. Dietary hempseed reduces platelet aggregation. J Thromb Haemost. 2007;5(2):424-5. PubMed
  5. Stadtmauer G, Beyer K, Bardina L, Sicherer SH. Anaphylaxis to ingestion of hempseed (Cannabis sativa). J Allergy Clin Immunol. 2003;112(1):216-7. PubMed
  6. Del Bo' C, Deon V, Abello F, et al. Eight-week hempseed oil intervention improves the fatty acid composition of erythrocyte phospholipids and the omega-3 index, but does not affect the lipid profile in children and adolescents with primary hyperlipidemia. PubMed
  7. Alkhammash S, Tsui H, Thomson DMP. Cannabis and hemp seed allergy. J Allergy Clin Immunol Pract. 2019;7(7):2429-2430.e1. PubMed
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  9. Déléaval M, Burri H, Bakelants E. Harmless herbs? A case report of acquired long QT syndrome and torsades de pointes in a patient taking herbal supplements. HeartRhythm Case Rep 2022;8(5):309-12. PubMed
  10. Singh M, Sehgal M, Yacoub M, et al. Severe liver dysfunction in a toddler receiving nonprescription phytocannabinoid. J Am Pharm Assoc (2003) 2022;62(4):1438-1440. PubMed
  11. Clark E, Nilsson U, Samaran Q, Raison-Peyron N. Allergic contact dermatitis from Cannabis sativa (hemp) seed oil. Contact Dermatitis 2022;87(3):292-293.
  12. Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed

See these in context on the Hemp monograph →

Hops 15 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. Zava DT, Dollbaum CM, Blen M. Estrogen and progestin bioactivity of foods, herbs, and spices. Proc Soc Exp Biol Med 1998;217:369-78. PubMed
  4. Milligan SR, Kalita JC, Heyerick A, et al. Identification of a potent phytoestrogen in hops (Humulus lupulus L.) and beer. J Clin Endocrinol Metab 1999;84:2249-52.. PubMed
  5. Milligan SR, Kalita JC, Pocock V, et al. The endocrine activities of 8-prenylnaringenin and related hop (Humulus lupulus L.) flavonoids. J Clin Endocrinol Metab 2000;85:4912-5.. DOI
  6. Henderson MC, Miranda CL, Stevens JF, et al. In vitro inhibition of human P450 enzymes by prenylated flavonoids from hops, Humulus lupulus. Xenobiotica 2000;30:235-51.. PubMed
  7. Mannering, G. J., Shoeman, J. A., and Deloria, L. B. Identification of the antibiotic hops component, colupulone, as an inducer of hepatic cytochrome P-4503A in the mouse. Drug Metab Dispos 1992;20(2):142-147. DOI
  8. Skorska, C., Mackiewicz, B., Gora, A., Golec, M., and Dutkiewicz, J. Health effects of inhalation exposure to organic dust in hops farmers. Ann.Univ Mariae.Curie Sklodowska [Med] 2003;58(1):459-465.
  9. Schiller, H., Forster, A., Vonhoff, C., Hegger, M., Biller, A., and Winterhoff, H. Sedating effects of Humulus lupulus L. extracts. Phytomedicine. 2006;13(8):535-541. PubMed
  10. van Hunsel, F. P. and Kampschoer, P. [Postmenopausal bleeding and dietary supplements: a possible causal relationship with hop- and soy-containing preparations]. Ned.Tijdschr.Geneeskd. 2012;156(41):A5095.
  11. Fenselau, C. and Talalay, P. Is oestrogenic activity present in hops? Food Cosmet.Toxicol. 1973;11(4):597-602. PubMed
  12. Godnic-Cvar, J., Zuskin, E., Mustajbegovic, J., Schachter, E. N., Kanceljak, B., Macan, J., Ilic, Z., and Ebling, Z. Respiratory and immunological findings in brewery workers. Am J Ind Med 1999;35(1):68-75. DOI
  13. Lee KM, Jung JS, Song DK, and et al. Effects of Humulus lupulus extract on the central nervous system in mice. Planta Med 1993;59(Suppl):A691.
  14. Assessment report on Humulus lupulus L., flos. European Medicines Agency, 2014. Available at: https://www.ema.europa.eu/en/documents/herbal-report/final-assessment-report-humulus-lupulus-l-flos_en.pdf. Accessed September 29, 2021.
  15. van Breemen RB, Chen L, Tonsing-Carter A, et al. Pharmacokinetic Interactions of a Hop Dietary Supplement with Drug Metabolism in Perimenopausal and Postmenopausal Women. J Agric Food Chem. 2020;68(18):5212-5220. PubMed

See these in context on the Hops monograph →

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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.

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