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

Sleep Ingredients & Drug Interactions

by Warrior Strong Wellness

Sleep label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Sleep 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

Sleep is a dietary supplement by Warrior Strong Wellness with 2 active ingredients. Its ingredients are commonly taken for anxiety and stress, relaxation and calm, sleep support.Based on those ingredients, 565 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Theanine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Sleep by Warrior Strong Wellness

Ask about any prescription or over-the-counter medication and we check it for interactions with Sleep by Warrior Strong Wellness — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Sleep by Warrior Strong Wellness

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

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Warrior Strong Wellness Sleep contains 2 active ingredients: L-theanine and apigenin. L-theanine is an amino acid that may help with relaxation and cognitive function, while apigenin is a plant compound.

The capsule also contains three inactive ingredients—hypromellose, rice flour, and stearate—which are fillers and binders that give the supplement its form.

Does it work?

Not established
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
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Theanine's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: calming and relaxing effect on mind and body.
  • We looked for evidence on: Generalized anxiety disorder (GAD), Stress, Insomnia, Sleep quality, Anxiety, Relaxation.
  • The closest evidence on file: Theanine is rated "Insufficient Reliable Evidence To Rate" for Generalized anxiety disorder (GAD) (Natural Medicines).
  • Also on file: Theanine is rated "Insufficient Reliable Evidence To Rate" for Insomnia, Stress.

For L-theanine, the evidence supports it as possibly effective for cognitive function. For age-related cognitive decline, Alzheimer disease, generalized anxiety disorder, obsessive-compulsive disorder, and cancer, we don't have enough reliable evidence to rate whether it works.

We hold no effectiveness data for apigenin.

The evidence, ingredient by ingredient Theanine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

L-theanine is generally well tolerated in healthy adults when used short-term, but long-term safety hasn't been well studied. The most common side effects are headaches and drowsiness; some people also report longer sleep duration and more vivid dreams.

One case of facial tics was reported in a child, but it wasn't clearly tied to the supplement. There isn't enough safety data on L-theanine in pregnancy or while breastfeeding, so it's best to avoid it during those times.

We hold no safety data for apigenin.

Side effects, ingredient by ingredient Theanine

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Theanine.
  • The most serious interaction on file is rated Moderate.
  • For scale: 565 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you take this, check with your pharmacist if you're on blood pressure medications—L-theanine could potentiate their effect and lower your pressure too much. Also flag any sedatives, sleep aids, pain relievers, or serotonergic drugs like certain antidepressants.

We could not check apigenin against our database, so mention all your medications to be thorough.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

This sleep formula may help with relaxation, but it's important to check it against any blood pressure or neurological medications you take. If you're pregnant, breastfeeding, or taking multiple prescriptions, talk to your pharmacist before starting.

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

Assessment coverage: 1 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 23, 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

At a glance

General information

Key facts about Sleep, straight from the product label.

Brand Warrior Strong Wellness
Barcode (UPC) X003W1SOJ9
Net contents 60 Vegan Capsule(s)
Market status On market
Date entered into DSLD Jan 23, 2025
DSLD ID 321108
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Women (not pregnant or lactating), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Sleep by Warrior Strong Wellness, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
60
UPC/BARCODE
X003W1SOJ9
IngredientAmount% DV
L-Theanine200 mg--
Apigenin50 mg--

Other ingredients: Hypromellose, Rice Flour, Stearate

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.
Formula

L-Theanine is an amino acid commonly found in tea leaves, particularly in green tea (Camellia sinensis). May have a calming and relaxing effect on the mind and body. Apigenin is a powerful bioflavonoid found in chamomile tea and an antioxidant compound found in many different plants, herbs, fruit and vegetables. May improve sleep quality.

L-Theanine & Apigenin

General Statements

St. Baldrick's Foundation Conquer Childhood Cancers A portion of the proceeds will be donated to childhood cancer research

Save 15% on www.warriorstrongwellness.com

Warrior Strong Wellness has been providing quality products since 2017

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

Caution: Consult your doctor Before using this product, if you are taking any medications. Especially, if you are taking SSRIs, hormones or blood thinning type medications. Interactions: L-Theanine may interact with certain medications, including blood pressure medications, stimulants, and medications that affect neurotransmitter levels. Consult with your healthcare provider to ensure there are no potential interactions with your current medications. Do not take this product if you are pregnant or nursing or under the age of 18.

Allergens: If you have known allergies or sensitivities to amino acids, tea, or tea-related products, your should exercise caution when taking L-Theanine.

Do not take this product if you are pregnant or nursing or under the age of 18. Keep out of reach of children.

Discontinue use and consult a doctor immediately if any adverse reactions occur. Do not take this product, L-Theanine and Apigenin and operate any heavy machinery or drive until you know how it affects you. It is best to take it before bedtime. Do not exceed more than 4 capsules per day.

Suggested/Recommended/Usage/Directions

Recommended dosage 1 capsule in the evening before bed.

Suggested use: Take 1 capsule per day in the evening before bedtime, as a dietary supplement.

Storage

Storage: Store in a cool, dark, dry place.

Formulation

Natural rest Restful sleep Calm mind & body Relaxation support

Tested in an ISO Certified Lab

Soy free GMO free Dairy free Gluten free

Vegan

Seals/Symbols

Made in a GMP Certified Facility Made in a FDA Registered Facility

Manufactured in the US

FDA Statement of Identity

Dietary Supplement

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

See for yourself

Sleep by Warrior Strong Wellness label

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

Sleep 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 Sleep by Warrior Strong Wellness

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

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

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

L-Theanine

Interacts with
565 drugs
200 mg per serving

Theanine (usually L-theanine) is an amino acid found naturally in tea leaves that many people take to feel calmer and less stressed without strong dro...

L-Theanine monograph & interactions

Apigenin

50 mg per serving

Other (inactive) ingredients: Hypromellose, Rice Flour, Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Sleep by Warrior Strong Wellness Drug Interactions

Want to check YOUR meds against Sleep?

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
565Drugs
172 Moderate 393 Minor

Ingredients driving the most interactions

L-Theanine 565

Individual Drug Interactions

The ingredients in Sleep interact with 565 drugs. Click any drug to see the details.

1 of the 2 ingredients in Sleep interact with drugs. Each result below shows which ingredient is responsible. L-Theanine

Each ingredient & the kinds of drugs it affects

For each ingredient in Sleep 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.

L-Theanine3 drug types · 565 drugs

Antihypertensive Drugs

Theanine might lower blood pressure, potentiating the effects of antihypertensive drugs.
Animal research shows that theanine can lower blood pressure in spontaneously hypertensive animals. Theoretically, concomitant use of theanine and antihypertensive drugs might potentiate the antihypertensive activity.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, theanine might have additive sedative effects when used in conjunction with CNS depressants. However, it is unclear if this concern is clinically relevant.
Theoretically, theanine may compete with glutamate and/or increase plasma gamma-aminobutyric acid (GABA) levels, which could cause CNS depression. In one clinical study, some subjects taking oral theanine reported drowsiness.

Likelihood Unlikely Evidence D
Serotonergic Drugs

Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting. Some studies suggest it can increase serotonin levels in the brain while others report that it may decrease them. Nevertheless, there have been no reports of l-theanine being a causative agent in serotonergic-related side effects or serotonin syndrome.

Likelihood Unlikely Evidence C
L-Theanine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Sleep, from the product label.

Warrior Strong Wellness

See all Warrior Strong Wellness products
Name
Warrior Strong Enterprises, LLC
Street Address
9850 S Maryland Parkway Ste A-5-569
City
Las Vegas
State
NV
ZipCode
89183
Web Address
www.warriorstrongwellness.com
Pharmacist Counseling Corner

Sleep by Warrior Strong Wellness: Common Questions

Does Sleep by Warrior Strong Wellness interact with any medications?
Yes. Based on its ingredients, Sleep has a known interaction with 565 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Sleep contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this if I'm pregnant or breastfeeding?
There isn't enough safety data on L-theanine during pregnancy or breastfeeding, so it's best to avoid it. We have no data for apigenin either. Talk with your doctor or pharmacist about what's safe for you.
What are the side effects of L-theanine?
The most common side effect is headache. Some people also report drowsiness, longer sleep, or more vivid dreams. One case of facial tics was reported, but it wasn't clearly linked to the supplement.
Does L-theanine actually improve sleep or cognitive function?
L-theanine is possibly effective for cognitive function. For sleep or other conditions like anxiety or age-related cognitive decline, we don't have enough reliable evidence to say whether it works.
What is apigenin, and why can't you check it for interactions?
Apigenin is a plant compound in the formula. We don't hold interaction data for it, so we can't check it against medications the way we did L-theanine. Mention all your supplements and prescriptions to your pharmacist.
Is L-theanine safe to take long-term?
It's generally well tolerated for short-term use in healthy adults, but long-term safety hasn't been well studied. If you plan to take it regularly, check in with your pharmacist.

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

Not sure if Sleep is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Sleep label
Go deeper

The Full Monographs Behind Sleep’s Ingredients

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

Herb & supplement monograph

Theanine

Interacts with 565 drugs

Theanine (usually L-theanine) is an amino acid found naturally in tea leaves that many people take to feel calmer and less stressed without strong drowsiness. Early research suggests it may...

Read the full Theanine monograph →
Sources

Sources & How We Checked

Sleep'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 6 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.

Theanine 6 references
  1. Yokogoshi H, Kobayashi M. Hypotensive effect of gamma-glutamylethylamide in spontaneously hypertensive rats. Life Sci 1998;62:1065-8.
  2. Haskell, C. F., Kennedy, D. O., Milne, A. L., Wesnes, K. A., and Scholey, A. B. The effects of L-theanine, caffeine and their combination on cognition and mood. Biol.Psychol. 2008;77(2):113-122. PubMed
  3. Yokogoshi, H., Kato, Y., Sagesaka, Y. M., Takihara-Matsuura, T., Kakuda, T., and Takeuchi, N. Reduction effect of theanine on blood pressure and brain 5-hydroxyindoles in spontaneously hypertensive rats. Biosci.Biotechnol.Biochem. 1995;59(4):615-618. PubMed
  4. Lyon MR, Kapoor MP, Juneja LR. The effects of L-theanine (Suntheanine®) on objective sleep quality in boys with attention deficit hyperactivity disorder (ADHD): a randomized, double-blind, placebo-controlled clinical trial. Altern Med Rev. 2011;16(4):348-
  5. Hidese S, Ota M, Wakabayashi C, et al. Effects of chronic l-theanine administration in patients with major depressive disorder: an open-label study. Acta Neuropsychiatr 2017;29(2):72-9.
  6. Tsuchiya T, Honda H, Oikawa M, et al. Oral administration of the amino acids cystine and theanine attenuates the adverse events of S-1 adjuvant chemotherapy in gastrointestinal cancer patients. Int J Clin Oncol 2016;21(6):1085-90. PubMed

See these in context on the Theanine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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