Ornithine 500 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Ornithine 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
Ornithine 500 mg is a dietary supplement by Dr. Clark Store with 1 active ingredient. Its ingredients are commonly taken for athletic performance and recovery, reducing fatigue, sleep and stress support.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Ornithine 500 mg by Dr. Clark Store
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: L-ornithine, an amino acid, at 500 mg per capsule. The capsule itself is made from plant-based tapioca.
Does it work?
Not established
L-ornithine is possibly effective for athletic performance according to the evidence we hold. For dry skin, insomnia, and periodontitis (gum inflammation and infection), the research available isn't strong enough yet to say whether it helps — the evidence is insufficient.
How safe is it?
Some data gaps
L-ornithine is generally well tolerated in the short term, but we don't have much data on what happens if you take it for years. Long-term safety hasn't been well studied, so that's worth keeping in mind if you're thinking about ongoing use.
The safety data advises against use during pregnancy and while breastfeeding — there isn't enough information to know it's safe in those situations. Talk with your doctor or pharmacist about whether this is right for you if you're pregnant, planning to become pregnant, or breastfeeding.
Meds to double-check
No known interactions
No interactions are documented in our data for L-ornithine.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. No medication interactions are currently documented, and some safety-information gaps remain.
If you're looking to support athletic performance, L-ornithine may be worth trying. Just know that long-term safety isn't well established, and it's not recommended during pregnancy or breastfeeding.
Talk with your doctor or pharmacist about whether it fits your situation.
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 22, 2020.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Ornithine 500 mg, straight from the product label.
| Brand | Dr. Clark Store |
|---|---|
| Barcode (UPC) | 652384800327 |
| Net contents | 100 Tapioca Cap(s) |
| Market status | On market |
| Date entered into DSLD | May 22, 2020 |
| DSLD ID | 220070 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Ornithine 500 mg by Dr. Clark Store, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Ornithine | 4000 mg | -- |
Other ingredients: Plant Based Tapioca Capsules
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.
Suggested/Recommended/Usage/Directions
Suggested Use: Take up to 8 capsules before bedtime, or as directed by a healthcare professional. Start with 1 to 3 capsules and take more as needed.
General Statements
Self Health Resource Center (866) DR-CLARK (372-5275) www.DrClarkStore.com
Leader in purity Established by Dr. Clark's family in 1993
Company does not adopt any Dr. Clark claims.
Formulation
Our products don't contain flow agents like magnesium stearate. Not now, not ever.
Enhances sleep quality
Seals/Symbols
Made in USA
FDA Statement of Identity
Dietary Supplement
Formula
Plant based caps
Storage
Store at room temperature.
Precautions
Keep away from children.
Warning: If you are pregnant, nursing or taking any medications, consult your doctor before use.
If any adverse reactions occur, immediately stop using this product and consult your doctor. If seal under cap is damaged or missing, do not use.
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.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Ornithine 500 mg by Dr. Clark Store 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 Ornithine 500 mg by Dr. Clark Store
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container12 Amounts shown are per serving.
L-Ornithine
No knowninteractions
Ornithine is a non-essential amino acid your body makes naturally as part of the urea cycle, which helps remove ammonia. It is sold as a supplement fo...
L-Ornithine monograph & interactionsOther (inactive) ingredients: Plant Based Tapioca Capsules. These complete the product’s ingredient list but are not active constituents.
Ornithine 500 mg by Dr. Clark Store Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Ornithine 500 mg. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Ornithine 500 mg, from the product label.
Dr. Clark Store
See all Dr. Clark Store products- Name
- Dr. Clark Store
- Phone Number
- (866) 372-5275
- Web Address
- www.DrClarkStore.com
Ornithine 500 mg by Dr. Clark Store: Common Questions
Does Ornithine 500 mg by Dr. Clark Store interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is ornithine safe to take long-term?
Can I take ornithine while pregnant or breastfeeding?
What is L-ornithine used for?
Are there any side effects from ornithine?
What's in the capsule besides ornithine?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Ornithine 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 Ornithine 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
Ornithine 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 1 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.
Ornithine 1 reference
- Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
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