Hops Extract Powder 500 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Hops Extract Powder 500 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
Hops Extract Powder 500 mg is a dietary supplement by BulkSupplements.com with 1 active ingredient. Its ingredients are commonly taken for sleep problems and insomnia, anxiety and restlessness, menopausal symptoms.Based on those ingredients, 863 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Hops Flower Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Hops Extract Powder 500 mg by BulkSupplements.com
Ask about any prescription or over-the-counter medication and we check it for interactions with Hops Extract Powder 500 mg by BulkSupplements.com — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Hops Extract Powder 500 mg by BulkSupplements.com
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.
What’s inside
Full disclosure
This product contains one active ingredient: hops flower extract at 500 mg per serving. Hops is the dried cone of the hop plant, traditionally used in brewing and herbal medicine.
The powder form includes dextrin as an inactive ingredient (a filler to help with consistency and flow).
Does it work?
Couldn't assess
The evidence isn't established in our data for hops extract's use against age-related cognitive decline, sexual dysfunction, anxiety, ADHD, indigestion (dyspepsia), or insomnia. All six of these uses carry an insufficient-evidence rating, meaning the science so far doesn't support a clear claim either way.
If you're thinking about hops for one of these reasons, that's a conversation to have with your pharmacist or doctor.
How safe is it?
Well-documented data
The safety data advises against hops during pregnancy—there isn't enough information to know it's safe. Similarly, there isn't enough data to know whether it's safe while breastfeeding, so it's best avoided then too.
Talk with your doctor or pharmacist for personalized advice if you're pregnant, planning to become pregnant, or nursing.
Meds to double-check
Moderate interaction found
Check your medications before starting hops, particularly sedative drugs (CNS depressants) that could cause extra drowsiness. Also flag any estrogen-based medications, including birth control and hormone replacement therapy, since hops may interfere with them at Moderate severity.
Minor interactions are possible with drugs broken down by the liver enzymes CYP3A4 and CYP1A2, though these effects may not be clinically meaningful—still worth reviewing with your pharmacist.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Hops extract might interest you if you're exploring herbal options for sleep, anxiety, or cognitive issues, but the evidence for these uses isn't solid yet. Be cautious if you take sedatives, hormone medications, or drugs that depend on liver metabolism—check your exact medications first.
Definitely talk to your pharmacist before starting, especially if you're pregnant, breastfeeding, or have respiratory concerns.
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 May 21, 2025.
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
General information
Key facts about Hops Extract Powder 500 mg, straight from the product label.
| Brand | BulkSupplements.com |
|---|---|
| Barcode (UPC) | X002O5PSCP |
| Net contents | 250 Gram(s); 8.8 Ounce(s) |
| Market status | On market |
| Date entered into DSLD | May 21, 2025 |
| DSLD ID | 330997 |
| Product type | Botanical |
| Supplement form | Powder |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy Free |
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 Hops Extract Powder 500 mg by BulkSupplements.com, sourced from the NIH Dietary Supplement Label Database.
Tap any ingredient to jump to its full detail below.
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.
Brand IP Statement(s)
BulkSupplements.com Clean & pure bulk supplements
Formula
Hops Extract Powder 500 mg per serving
Formulation
Color may vary
Free of: Added sugar, soy, dairy, yeast, gluten.
FDA Disclaimer Statement
Warning: This product is not intended to diagnose, treat, cure, or prevent any disease.
Precautions
Always consult a physician before taking any dietary supplement.
Keep out of reach of children.
Suggested/Recommended/Usage/Directions
Suggested use: As a dietary supplement, take 500 mg (about 1/5 tsp) once daily, or as directed by a physician.
General Statements
Use an accurate milligram scale. New
Storage
Store in a dry, cool place. Contents are sold by weight, not volume. Settling may occur.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Hops Extract Powder 500 mg by BulkSupplements.com label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Hops Extract Powder 500 mg by BulkSupplements.com
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size500 Milligram(s) Dosage formPowder Servings per container500 Amounts shown are per serving.
Hops Flower Extract
Interacts with863 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 ar...
Hops Flower Extract monograph & interactionsOther (inactive) ingredients: Dextrin. These complete the product’s ingredient list but are not active constituents.
Hops Extract Powder 500 mg by BulkSupplements.com Drug Interactions
HelloPharmacist Interaction Report
Hops Extract Powder from BulkSupplements.com has documented interactions with several medication types.
The most serious concern is with sedative drugs (CNS depressants)—hops has sedative effects of its own, and combining them might pile on the drowsiness. This is a Moderate-severity interaction.
Read the full breakdown — every affected drug type, severity by severity
Hops may also interfere with estrogen-based medications, including hormone replacement therapy, at Moderate severity. In lab studies, certain hops compounds can compete for estrogen receptors, though most hops extracts contain only small amounts of these active compounds.
Additionally, hops extract might theoretically affect how your body breaks down drugs metabolized by the liver enzyme CYP3A4, though this effect is probably not clinically significant—a Minor-severity interaction. Similarly, while hops flavonoids inhibit CYP1A2 in the test tube, a human study suggests this doesn't cause a real problem in practice, also Minor severity.
Altogether, these interactions span 853 individual medications. Before you start hops, run your exact medications—especially anything that makes you drowsy or any hormone-based drugs—through the interaction checker on this page.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Hops Extract Powder 500 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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Hops Extract Powder 500 mg interact with 863 drugs. Click any drug to see the details.
1 of the 1 ingredient in Hops Extract Powder 500 mg interact with drugs. Each result below shows which ingredient is responsible. Hops Flower Extract
AcepromazineAtravet
How Acepromazine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acepromazine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants +1 Moderate
Interaction Summary
Theoretically, hops extract might alter metabolism of CYP3A4 substrates; however, this effect may not be clinically significant.
Read the full Hops Flower Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants +1 Moderate
Interaction Summary
Theoretically, hops extract might alter metabolism of CYP3A4 substrates; however, this effect may not be clinically significant.
Read the full Hops Flower Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants +1 Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorzoxazone, CodeineAcetazone Forte C8, Parafon Forte C8
How Acetaminophen, Chlorzoxazone, Codeine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Chlorzoxazone, Codeine interactionAcetaminophen, CodeineTylenol No.3, Tylenol w/ Codeine
How Acetaminophen, Codeine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Codeine interactionAcetaminophen, Codeine, DoxylamineMersyndol
How Acetaminophen, Codeine, Doxylamine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Codeine, Doxylamine interactionAcetaminophen, Codeine, MethocarbamolAcetaminophen, Codeine, Methocarbamol, Robaxacet 8
How Acetaminophen, Codeine, Methocarbamol interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Codeine, Methocarbamol interactionAcetaminophen, Dichloralantipyrine, IsomethepteneAmidrine, Midchlor, Migquin, Migratine
How Acetaminophen, Dichloralantipyrine, Isometheptene interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Dichloralantipyrine, Isometheptene interactionAcetaminophen, Dichloralphenazone, IsomethepteneMidrin
How Acetaminophen, Dichloralphenazone, Isometheptene interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Dichloralphenazone, Isometheptene interactionAcetaminophen, Dichlorophenazone, IsometheptaneIsocom
How Acetaminophen, Dichlorophenazone, Isometheptane interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Dichlorophenazone, Isometheptane interactionAcetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength
How Acetaminophen, Diphenhydramine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Diphenhydramine interactionAcetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief
How Acetaminophen, Diphenhydramine, Pseudoephedrine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionAcetaminophen, HydrocodoneAnexsia, Anodynos DHC, Azdone, Co-Gesic, Doucet, Lorcet +9 more
How Acetaminophen, Hydrocodone interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Hydrocodone interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Meperidine interactionAcetaminophen, OxycodonePercocet, Roxicet, Tylox, Xartemis XR
How Acetaminophen, Oxycodone interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Oxycodone interactionAcetaminophen, PentazocineTalacen
How Acetaminophen, Pentazocine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Pentazocine interactionAcetaminophen, PropoxypheneDarvocet-N 100, Darvocet-N 50, E-Lor, Wygesic
How Acetaminophen, Propoxyphene interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants Moderate
Interaction Summary
Hops extract does not seem to affect the metabolism of CYP1A2 substrates.
Read the full Hops Flower Extract + Acetaminophen, Propoxyphene interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Acetazolamide interactionAlfentanilAlfenta
How Alfentanil interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, hops extract might alter metabolism of CYP3A4 substrates; however, this effect may not be clinically significant.
Read the full Hops Flower Extract + Alfentanil interactionAlprazolamNiravam, Xanax
How Alprazolam interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Alprazolam interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAminoglutethimideCytadren
How Aminoglutethimide interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Aminoglutethimide interactionAminophylline, Amobarbital, EphedrineAmesec
How Aminophylline, Amobarbital, Ephedrine interacts with Hops Extract Powder 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Hops Flower ExtractCns Depressants Moderate
Interaction Summary
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Read the full Hops Flower Extract + Aminophylline, Amobarbital, Ephedrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Hops Extract Powder 500 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.
Hops Flower Extract
Cns Depressants
Theoretically, concomitant use of hops with sedative drugs might cause additive sedation.
Some animal research shows that hops has sedative effects.
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.
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.
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.
Brand information
Manufacturer and brand details for Hops Extract Powder 500 mg, from the product label.
BulkSupplements.com
See all BulkSupplements.com products- Name
- BulkSupplements.com
- Street Address
- 7511 Eastgate Rd
- City
- Henderson
- State
- NV
- ZipCode
- 89011
- Web Address
- BulkSupplements.com
Hops Extract Powder 500 mg by BulkSupplements.com: Common Questions
Does Hops Extract Powder 500 mg by BulkSupplements.com interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take hops if I'm pregnant or breastfeeding?
Will hops make me drowsy?
Does this product actually work for sleep, anxiety, or brain health?
What's in this powder besides the active ingredient?
Is hops safe if I take sleep aids or sedative medications?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Hops Extract Powder 500 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Hops Extract Powder 500 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Hops Extract Powder 500 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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 15 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.
Hops 15 references
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- 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
- 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
- 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
- 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
- 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
- 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.
- 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
- 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.
- Fenselau, C. and Talalay, P. Is oestrogenic activity present in hops? Food Cosmet.Toxicol. 1973;11(4):597-602. PubMed
- 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
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