L-Ornithine 500 mg Ingredients & Drug Interactions
by Nutricost
What is this page for?
First and foremost: checking L-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
L-Ornithine 500 mg is a dietary supplement by Nutricost 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 L-Ornithine 500 mg by Nutricost
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 HCl (L-Ornithine hydrochloride), an amino acid supplied at 500 mg per capsule. The inactive ingredients are rice flour, the capsule shell itself, magnesium stearate, and stearic acid — all standard capsule fillers and binders.
Does it work?
Moderate evidence
L-Ornithine shows possibly effective evidence for athletic performance. For dry skin, insomnia, and periodontitis (gum disease), the evidence isn't established well enough to rate it — meaning we don't have enough reliable data to say whether it works for those uses.
If you're thinking about it for a specific reason, check with your doctor or pharmacist about what the research actually supports.
How safe is it?
Some data gaps
L-Ornithine is generally well tolerated over short periods, but we don't have solid long-term safety data. There isn't enough information to know whether it's safe during pregnancy or while breastfeeding — the safety data advises against use in both cases.
If you're pregnant, planning to become pregnant, or nursing, talk with your doctor or pharmacist before starting.
Meds to double-check
No known interactions
No interactions are documented in our data for L-Ornithine. That absence isn't a guarantee none exist, so use the medication checker on this page with your exact drugs, and confirm with your doctor or pharmacist before you start.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. No medication interactions are currently documented, and some safety-information gaps remain.
If you're interested in L-Ornithine for athletic performance, this single-ingredient capsule is straightforward to use. Just know the long-term safety picture isn't well mapped out, and pregnancy or breastfeeding are times to check with your own doctor or pharmacist first.
Run your other medications through the checker on this page to be sure.
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 Jul 21, 2022.
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 L-Ornithine 500 mg, straight from the product label.
| Brand | Nutricost |
|---|---|
| Barcode (UPC) | 702669932523 |
| Net contents | 180 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jul 21, 2022 |
| DSLD ID | 269693 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten 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 L-Ornithine 500 mg by Nutricost, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Ornithine HCl | 500 mg | -- |
Other ingredients: Rice Flour, Capsule, Magnesium Stearate, Stearic Acid
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
Recommended Use: As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.
Precautions
Warning: For healthy individuals 18 years and older.
Consult a healthcare professional prior to use if you are pregnant or nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Do not use if safety seal is broken or missing.
Storage
Notice: Store in a cool, dry place.
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.
FDA Statement of Identity
Dietary Supplement
Seals/Symbols
Quality Guaranteed Nutricost
Third Party Tested
Formulation
Non GMO Gluten Free Product
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Ornithine 500 mg by Nutricost 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 L-Ornithine 500 mg by Nutricost
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 container180 Amounts shown are per serving.
L-Ornithine HCl
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 HCl monograph & interactionsOther (inactive) ingredients: Rice Flour, Capsule, Magnesium Stearate, Stearic Acid. These complete the product’s ingredient list but are not active constituents.
L-Ornithine 500 mg by Nutricost Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in L-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 L-Ornithine 500 mg, from the product label.
Nutricost
See all Nutricost products- Name
- Nutricost
- Street Address
- 351 E 1750 N
- City
- Vineyard
- State
- UT
- ZipCode
- 84059
- Phone Number
- (866) 438-3694
- Web Address
- www.nutricost.com
L-Ornithine 500 mg by Nutricost: Common Questions
Does L-Ornithine 500 mg by Nutricost interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does L-Ornithine really help with athletic performance?
Can I take this while I'm pregnant or breastfeeding?
What are the side effects?
Will this help my dry skin or insomnia?
How long can I safely take L-Ornithine?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-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 L-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
L-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