Valerian Root 500 mg Ingredients & Drug Interactions
by Nature's Lab
What is this page for?
First and foremost: checking Valerian Root 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
Valerian Root 500 mg is a dietary supplement by Nature's Lab with 2 active ingredients. Its ingredients are commonly taken for insomnia and poor sleep, anxiety and stress, restlessness.Based on those ingredients, 902 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Valerian Root Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Valerian Root 500 mg by Nature's Lab
Ask about any prescription or over-the-counter medication and we check it for interactions with Valerian Root 500 mg by Nature's Lab — 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 Valerian Root 500 mg by Nature's Lab
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 two active valerian ingredients: Valerian Root Extract and Valerian Powder. Both are forms of the same plant and work the same way in your body.
Altogether there are two active ingredients. The capsule also contains two inactive ingredients (hypromellose and rice husks concentrate) that help hold it together.
Does it work?
Moderate evidence
The data shows valerian is possibly effective for insomnia — the evidence suggests it may help, but it's not definitive. For restless legs syndrome, pre-procedural anxiety, stress, and painful periods (dysmenorrhea), the evidence isn't established enough in our data to rate whether it works.
How safe is it?
Well-documented data
Short-term, valerian is generally well tolerated. The most common side effects are dizziness, drowsiness, and mental slowness; some people also report headache, stomach upset, vivid dreams, or a jittery feeling.
If you take it for a long time and then stop abruptly, you might have withdrawal symptoms like racing heart, anxiety, irritability, or trouble sleeping — that's why you should taper your dose slowly after extended use. Long-term safety hasn't been well studied.
Rare serious effects including liver problems have been reported, mostly with multi-ingredient products. Safety data advises against valerian during pregnancy.
There isn't enough safety information to recommend it while breastfeeding — talk with your pharmacist or doctor for personalized advice.
Meds to double-check
Moderate interaction found
Before taking this product, check with your pharmacist if you take any CNS depressants (sleeping pills, anxiety medications, opioids), alprazolam (Xanax), or drink alcohol — valerian adds to sedation with all of these. Also check if you take drugs metabolized through glucuronidation, or CYP2D6 and CYP3A4 liver pathways — valerian may affect how they work.
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.
Valerian may help with insomnia if you're looking for a plant-based option. If you take any sedatives, sleep aids, anti-anxiety drugs, or drink alcohol regularly, you need to check with your pharmacist first — adding valerian could make you too drowsy.
Don't stop it suddenly after long-term use. Talk to your pharmacist before starting, especially if you're pregnant, breastfeeding, or take any regular medications.
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 Jul 24, 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 Valerian Root 500 mg, straight from the product label.
| Brand | Nature's Lab |
|---|---|
| Barcode (UPC) | 818014017347 |
| Net contents | 200 Easy-To-Swallow Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jul 24, 2025 |
| DSLD ID | 334731 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Kosher, Halal, Gluten Free, Dairy Free, Sugar 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 Valerian Root 500 mg by Nature's Lab, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Valerian Root Extract | 400 mg | -- |
| Valerian, Powder | 100 mg | -- |
Other ingredients: Hypromellose, Rice Husks Concentrate
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.
Formula
Valerian root is a perennial plant belonging to the Valerianaceae family. A perennial plant native to Europe and parts of Asia, Historically, valerian has been used as a medicinal herb since the time of ancient Greece and Rome. When used as a dietary supplement, valerian is known to support relaxation and restful sleep.+ Nature's Lab Valerian Root contains 500 mg of valerian root extract and powder per serving.
Halal
OU (Kosher)
Valerian Root 500 mg per serving
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Precautions
Warnings: Pregnant or lactating women and people with known medical conditions and/or taking drugs should consult with a qualified healthcare practitioner prior to taking dietary supplements.
Do not use if seal is broken.
Keep out of reach of children.
Manufactured in a facility that also processes soy, milk, fish and shellfish.
Seals/Symbols
Halal OU (Kosher)
Non GMO Project Verified nongmoproject.org
Formulation
Helps support relaxation & restful sleep
Non GMO Project Verified nongmoproject.org
Free of: Sugar, Salt, Dairy, Eggs, Peanuts, Tree Nuts, Fish, Shellfish, Yeast, Wheat, Gluten, Soy, Corn, Preservatives, Titanium Dioxide, Artificial Colors and Flavors. Non GMO, Gluten Free
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Suggested Use: As a dietary supplement, take 2 capsules before bedtime, or as directed by a qualified healthcare practitioner.
Storage
Store in a cool, dry place.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Valerian Root 500 mg by Nature's Lab 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 Valerian Root 500 mg by Nature's Lab
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 Capsule(s) Dosage formCapsule Servings per container100 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.
Valerian Root Extract
Interacts with902 drugs
Valerian is an herb whose root is widely used as a natural sleep aid and for calming nerves. The evidence is mixed and often weak, so it may help some...
Valerian Root Extract monograph & interactionsValerian, Powder
Interacts with902 drugs
Valerian is an herb whose root is widely used as a natural sleep aid and for calming nerves. The evidence is mixed and often weak, so it may help some...
Valerian, Powder monograph & interactionsOther (inactive) ingredients: Hypromellose, Rice Husks Concentrate. These complete the product’s ingredient list but are not active constituents.
Valerian Root 500 mg by Nature's Lab Drug Interactions
HelloPharmacist Interaction Report
Valerian Root 500 mg by Nature's Lab does interact with several common medications.
The most serious concerns are with CNS depressants (drugs that slow your brain activity, like sleeping pills, sedatives, and opioids) — valerian can add to their sedative effects and make you drowsier or more mentally sluggish than either one alone.
Read the full breakdown — every affected drug type, severity by severity
Valerian also interacts moderately with alcohol, which means drinking while taking it can cause extra sedation. If you take alprazolam (Xanax), valerian may add to its sedative effects; valerian in high doses might also slightly raise alprazolam levels, though this is unlikely to cause real problems.
Additionally, valerian may weakly interfere with how your body processes drugs that are broken down through glucuronidation (a liver pathway) — this could raise levels of some medications that use this pathway.
The product has minor interactions with drugs metabolized by two liver enzymes, CYP2D6 and CYP3A4, but clinical studies show valerian doesn't meaningfully affect how these drugs work.
Altogether, these interactions span 891 individual medications. Use the checker below with your exact prescription and over-the-counter drugs before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Valerian Root 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 Valerian Root 500 mg interact with 902 drugs. Click any drug to see the details.
1 of the 2 ingredients in Valerian Root 500 mg interact with drugs. Each result below shows which ingredient is responsible. Valerian Root Extract
AcepromazineAtravet
How Acepromazine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCns Depressants Moderate
Interaction Summary
Valerian can have additive sedative effects when used concomitantly with CNS depressant drugs.
Read the full Valerian, Powder + Acepromazine interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants +2 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cns Depressants +1 Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 2d6 (cyp2d6) Substrates, Glucuronidated Drugs +1 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Read the full Valerian, Powder + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCns Depressants, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
Valerian can have additive sedative effects when used concomitantly with CNS depressant drugs.
Read the full Valerian, Powder + 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 Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCns Depressants, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
Valerian can have additive sedative effects when used concomitantly with CNS depressant drugs.
Read the full Valerian, Powder + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Glucuronidated Drugs Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants +2 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Glucuronidated Drugs +1 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Glucuronidated Drugs Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Glucuronidated Drugs Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Glucuronidated Drugs Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cns Depressants +1 Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Glucuronidated Drugs Moderate
Interaction Summary
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more
How Acetaminophen, Chlorpheniramine, Pseudoephedrine interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, ChlorzoxazoneAcetazone Forte, Extra Strength Tylenol Aches & Strains, Parafon Forte
How Acetaminophen, Chlorzoxazone interacts with Valerian Root 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Valerian, PowderGlucuronidated Drugs Moderate
Interaction Summary
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
Read the full Valerian, Powder + Acetaminophen, Chlorzoxazone interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Valerian Root 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.
Valerian Root Extract
Alcohol (Ethanol)
Valerian can have additive sedative effects when used concomitantly with alcohol.
Valerian has sedative effects. Theoretically, valerian might have an additive sedative effect when combined with alcohol. Excessive sedation has been reported in an alcohol-abusing individual who took valerian and Gingko biloba. However, the potential interaction between valerian and alcohol has been disputed in other research. Limited evidence suggests that a combination of valerian 160 mg and lemon balm 80 mg (Euvegal) does not cause further deterioration in reaction ability and reaction rate when taken with alcohol as compared to the effects of alcohol alone.
Alprazolam (Xanax)
Valerian can have additive sedative effects when used with alprazolam. Also, valerian in high doses might modestly increase alprazolam levels, though this is not likely to be clinically significant.
Valerian has sedative effects. Theoretically, valerian might cause additive sedation when combined with alprazolam. Also, a small pharmacokinetic study shows that taking valerian extract 1000 mg daily (providing 11 mg valerenic acid) might increase alprazolam levels by about 19%. This might be due to valerian's mild inhibition of cytochrome P450 3A4 (CYP3A4). Despite being statistically significant, this increase is not likely to be clinically significant.
Cns Depressants
Valerian can have additive sedative effects when used concomitantly with CNS depressant drugs.
Theoretically, concomitant use of valerian and drugs with sedative and anesthetic properties may cause additive therapeutic and adverse effects.
Glucuronidated Drugs
Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
In vitro research shows that methanolic valerian extract and valerenic acid might competitively inhibit UDP-glucuronosyltransferase (UGT) 1A1 (UGT1A1) and UGT2B7.
Cytochrome P450 2D6 (Cyp2D6) Substrates
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Although some in vitro evidence suggests that valerian affects CYP2D6, clinical pharmacokinetic (PK) studies show that valerian is unlikely to affect the CYP2D6 enzyme. In one PK study, taking valerian 1000 mg (providing about 11 mg valerenic acid) nightly for 14 days did not affect the metabolism of dextromethorphan, a CYP2D6 substrate. In another PK study, taking valerian 125 mg three times daily for 28 days did not affect metabolism of debrisoquine, an accepted CYP2D6 probe-substrate.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Although some in vitro evidence suggests that valerian extract might inhibit or induce CYP3A4, clinical pharmacokinetic (PK) studies show that valerian does not have a clinically significant effect on the CYP3A4 enzyme. In one PK study, taking valerian 125 mg three times daily for 28 days did not affect metabolism of midazolam, an accepted CYP3A4 probe-substrate. In another PK study, taking valerian 1000 mg (providing about 11 mg valerenic acid) nightly for 14 days modestly increases levels of alprazolam, a CYP3A4 substrate, suggesting mild inhibition of CYP3A4. However, this mild inhibition is unlikely to be clinically relevant.
Brand information
Manufacturer and brand details for Valerian Root 500 mg, from the product label.
Nature's Lab
See all Nature's Lab products- Name
- Nature's Lab
- Street Address
- 6980 W. Warm Springs Road, Suite 100
- City
- Las Vegas
- State
- NV
- ZipCode
- 89113
- Phone Number
- 1-888-793-0351
- Web Address
- Natureslab.com
Valerian Root 500 mg by Nature's Lab: Common Questions
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The Full Monographs Behind Valerian Root 500 mg’s Ingredients
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Sources & How We Checked
Valerian Root 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 37 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.
Valerian 37 references
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- Houghton PJ. The scientific basis for the reputed activity of Valerian. J Pharm Pharmacol 1999;51:505-12. PubMed
- Garges HP, Varia I, Doraiswamy PM. Cardiac complications and delirium associated with Valerian root withdrawal. [Letter to the Editor]. JAMA 1998;280:1566-7. PubMed
- Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
- MacGregor FB, Abernethy VE, Dahabra S, et al. Hepatotoxicity of herbal remedies. BMJ 1989;299:1156-7. PubMed
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- Glass JR, Sproule BA, Herrmann N, et al. Acute pharmacological effects of temazepam, diphenhydramine, and valerian in healthy elderly subjects. J Clin Psychopharmacol 2003;23:260-8. PubMed
- Lefebvre T, Foster BC, Drouin CE, et al. In vitro activity of commercial valerian root extracts against human cytochrome P450 3A4. J Pharm Pharmaceut Sci 2004;7:265-73.
- Yuan CS, Mehendale S, Xiao Y, et al. The gamma-aminobutyric acidergic effects of valerian and valerenic acid on rat brainstem neuronal activity. Anesth Analg 2004;98:353-8. PubMed
- Donovan JL, DeVane CL, Chavin KD, et al. Multiple night-time doses of valerian (Valeriana officinalis) had minimal effects on CYP3A4 activity and no effect on CYP2D6 activity in healthy volunteers. Drug Metab Dispos 2004;32:1333-6. PubMed
- Gurley BJ, Gardner SF, Hubbard MA, et al. In vivo effects of goldenseal, kava kava, black cohosh, and valerian on human cytochrome P450 1A2, 2D6, 2E1, and 3A4/5 phenotypes. Clin Pharmacol Ther 2005;77:415-26. PubMed
- Gutierrez S, Ang-Lee MK, Walker DJ, Zacny JP. Assessing subjective and psychomotor effects of the herbal medication valerian in healthy volunteers. Pharmacol Biochem Behav 2004;78:57-64. PubMed
- Jacobs BP, Bent S, Tice JA, et al. An internet-based randomized, placebo-controlled trial of kava and valerian for anxiety and insomnia. Medicine (Baltimore) 2005;84:197-207. PubMed
- National Toxicology Program, US Department of Health and Human Services. Chemical Information Review Document for Valerian (Valeriana officinalis L.) [CAS No. 8057-49-6] and Oils [CAS No. 8008-88-6]. Supporting Nomination for Toxicological Evaluation by t
- Fernández-San-Martín MI, Masa-Font R, Palacios-Soler L, et al. Effectiveness of Valerian on insomnia: a meta-analysis of randomized placebo-controlled trials. Sleep Med. 2010 Jun;11:505-11. PubMed
- Coxeter PD, Schluter PJ, Eastwood HL, et al. Valerian does not appear to reduce symptoms for patients with chronic insomnia in general practice using a series of randomised n-of-1 trials. Complement Ther Med. 2003 Dec;11:215-22. PubMed
- Diaper A, Hindmarch I. A double-blind, placebo-controlled investigation of the effects of two doses of a valerian preparation on the sleep, cognitive and psychomotor function of sleep-disturbed older adults. Phytother Res. 2004 Oct;18:831-6. PubMed
- Cuellar NG, Ratcliffe SJ. Does valerian improve sleepiness and symptom severity in people with restless legs syndrome? Altern Ther Health Med 2009;15:22-8.
- Chen D, Klesmer J, Giovanniello A, et al. Mental status changes in an alcohol abuser taking valerian and gingko biloba. Am J Addict. 2002 Winter;11:75-7. PubMed
- Albrecht M, Berger W, Laux P, Schmidt U, et al. Psychopharmaka und Verkehrssicherheit. Der Einfluß von Euvegal® - Dragees forte auf die Fahrtüchtigkeit und Kombinationswirkungen mit Alkohol Z Allg Med 1995;71:1215-25.
- 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.
- Hellum BH, Nilsen OG. The in vitro inhibitory potential of trade herbal products on human CYP2D6-mediated metabolism and the influence of ethanol. Basic Clin Pharmacol Toxicol. 2007 Nov;101:350-8.
- Hellum BH, Hu Z, Nilsen OG. The induction of CYP1A2, CYP2D6 and CYP3A4 by six trade herbal products in cultured primary human hepatocytes. Basic Clin Pharmacol Toxicol. 2007 Jan;100:23-30. PubMed
- Alkharfy, K. M. and Frye, R. F. Effect of valerian, valerian/hops extracts, and valerenic acid on glucuronidation in vitro. Xenobiotica 2007;37(2):113-123.
- Vassiliadis, T., Anagnostis, P., Patsiaoura, K., Giouleme, O., Katsinelos, P., Mpoumponaris, A., and Eugenidis, N. Valeriana hepatotoxicity. Sleep Med 2009;10(8):935. PubMed
- Muller, Z., Sarkany, A., Altorjay, A., Szilagyi, A., Tura, T., and Ozsvar, Z. [Liver failure a la Eastern Europe]. Orv.Hetil. 3-22-2009;150(12):555-557. PubMed
- National Toxicology Program, US Department of Health and Human Services. Chemical Information Review Document for Valerian (Valeriana officinalis L.) [CAS No. 8057-49-6] and Oils [CAS No. 8008-88-6]. 2009;
- Wells SR. International intravenous administration of a crude valerian root extract. NACCT 1995;33:542.
- Aydinoglu U, Özcan H, Yücel A, Yücel N, Mutlu M. Valerian induced hypomania: a case report. Bull Clin Psychopharma 2012;22(Suppl. 1):S63.
- Mirabi P, Mojab F. The effects of valerian root on hot flashes in menopausal women. Iran J Pharm Res 2013;12(1):217-22.
- Thomas K, Canedo J, Perry PJ, et al. Effects of valerian on subjective sedation, field sobriety testing and driving simulator performance. Accid Anal Prev. 2016 Jul;92:240-4. PubMed
- Kia YH, Alexander S, Dowling D, Standish R. A case of steroid-responsive valerian-associated hepatitis. Intern Med J. 2016 Jan;46(1):118-9. PubMed
- Burke H, Jiang S, Chatham P, Stern TA. Delirium After Withdrawal From Valerian Root: A Case Report. Psychosomatics. 2020;61(6):787-790. PubMed
- Hajizadeh I, Jamshidi M, Kazemi M, Kargar H, Sadeghi T. Comparison the effect of valerian and gabapentin on RLS and sleep quality in hemodialysis patients: A randomized clinical trial. Ther Apher Dial 2023.
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.
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