Drug & supplement interaction

Ornithine + Meprobamate

Meprobamate brand names: Equanil, Miltown, Meprospan, Neuramate.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Ornithine and Meprobamate in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Ornithine and Meprobamate

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Meprobamate and Ornithine in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Ornithine at all — not against Meprobamate, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Ornithine safety at a glance

Ornithine overall Use caution Generally well tolerated short-term, but long-term safety is not well studied.
Pregnancy Avoid Not enough safety data; best to avoid during pregnancy.
Breastfeeding Avoid Not enough safety data; best to avoid while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Meprobamate and Ornithine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Meprobamate’s Own FDA Label Lists

This is not an interaction — none of it involves Ornithine. These are the most notable effects listed in the ADVERSE REACTIONS section of Meprobamate’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Unsteadiness Worth acting on
  • Fainting Worth acting on
  • Wheezing Worth acting on
  • An irregular heartbeat Worth acting on
  • A severe skin reaction Worth acting on
  • Kidney problems Worth acting on
  • Anemia Worth acting on
  • A severe allergic reaction Worth acting on
  • A low white blood cell count Worth acting on
  • Bleeding or bruising Worth acting on

Showing the 10 most notable of 23 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Meprobamate. Read the label on DailyMed › Ornithine’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Ornithine side to compare — that is a limit of the record, not a statement that Ornithine has no side effects.

Everything else you take

See Every Supplement That Interacts With Meprobamate

This page covers Ornithine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Meprobamate page lists 105 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).

By severity: 7 major · 82 moderate · 16 minor.

Open the Meprobamate interaction page

One more smart check

Taking Ornithine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 751 real supplement products containing Ornithine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Ornithine. Even though Ornithine itself has no known interaction with Meprobamate, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Ornithine and Meprobamate Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Ornithine
Top 25%

#264 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Meprobamate
Steady interest

#1,898 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions. Ornithine is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Ornithine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Ornithine and Meprobamate records this page draws on were last updated June 22, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Ornithine

What is Ornithine?

  • Athletic performance and recovery
  • Reducing fatigue
  • Sleep and stress support
  • Liver and ammonia metabolism support
  • Wound healing

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 for fatigue, exercise recovery, and sleep, but human evidence is limited and mixed. Talk to your pharmacist or doctor before using it, especially if you have a medical condition.

Amino acid (not a plant part) · Capsules, tablets, powder, often as L-ornithine or ornithine alpha-ketoglutarate (OKG)

An interaction check asks whether these two react with each other — it does not ask whether Ornithine is a good idea for someone in your situation. Here is what our Ornithine record says about it on its own.

Ornithine: dosing

There is no official, standardized dose of ornithine for any supplement use. Amounts used in studies have varied widely, and there is not enough strong evidence to recommend a specific dose.The safest approach is to follow the directions on the product label and not exceed them.

From our Ornithine monograph — the full record covers uses, side effects and every documented interaction.

Read the full Ornithine monograph & all interactions
Medication

About Meprobamate

What Is Meprobamate Used For?

Brand names: Equanil, Miltown, Meprospan, Neuramate

Meprobamate tablets are used to manage anxiety disorders or to provide short-term relief of anxiety symptoms. It is intended for anxiety that rises to the level of a disorder — everyday stress and tension that most people experience generally do not require this type of medication.

Because its effectiveness beyond four months has not been well studied, meprobamate is typically used for a limited period of time, with a prescriber checking in regularly to decide whether continued use is still appropriate.

See full Meprobamate drug information
Keep checking

Other Drugs & Ornithine

Browse every other medication we’ve checked against Ornithine — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Ornithine against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Ornithine list.

See the full Ornithine interactions page
See every supplement checked against Meprobamate, ranked by severity
Evidence & sources

Ornithine References

The 1 sources that drive our Ornithine monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Ornithine is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Ornithine and Meprobamate Together: Common Questions

Is it safe to take Ornithine with Meprobamate?
We do not list a known interaction between Ornithine and Meprobamate. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Meprobamate interact with any supplements?
Yes. Meprobamate has documented interactions with 105 supplements in our database — Ornithine is not one of them. The Meprobamate interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Ornithine monograph Uses, safety profile, and every drug interaction in one place Meprobamate drug information The full plain-English guide to this medication Meprobamate supplement interactions Every supplement checked against Meprobamate, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Meprobamate and Ornithine?

Our pharmacists answer your medication & supplement questions — free.

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.